“Actions are only by intentions, and every person shall have only what they intended. So whoever migrated for Allah and His Messenger, their migration was for Allah and His Messenger; and whoever migrated for some worldly gain or a woman to marry, their migration was for that to which they migrated.”

Bukhari & Muslim

The opening hadith of almost every Islamic curriculum: the same act can be worship or theatre depending on why you did it. Fix the intention and the ordinary becomes sacred.

“The angel Jibreel came in the form of a man and asked: What is Islam? The Prophet ﷺ answered: to testify there is no god but Allah and Muhammad is His Messenger, to establish prayer, give zakat, fast Ramadan, and make pilgrimage if able. What is Iman? To believe in Allah, His angels, His books, His messengers, the Last Day, and the decree, its good and its bad. What is Ihsan? To worship Allah as though you see Him; for though you do not see Him, He sees you.”

Muslim

The whole religion in one conversation: practice (Islam), belief (Iman), and excellence (Ihsan), three floors of one house.

“Islam is built upon five: testifying that there is no god but Allah and that Muhammad is the Messenger of Allah, establishing prayer, giving zakat, pilgrimage to the House, and fasting Ramadan.”

Bukhari & Muslim

Pillars hold up a building; they are not the building. The structure they carry is a whole life lived for God.

“Each of you is formed in the womb forty days as a drop, then a like period as a clinging form, then a like period as a lump; then the angel is sent to breathe the spirit and write four things: provision, lifespan, deeds, and whether wretched or blessed...”

Bukhari & Muslim

The hadith of destiny. Its practical teaching is not fatalism but focus: your provision and lifespan are handled; your assignment is the deeds.

“Whoever introduces into this matter of ours that which is not of it, it will be rejected.”

Bukhari & Muslim

Worship is received, not invented; the religion stays pure because its acts of devotion trace back to revelation, not fashion.

“The halal is clear and the haram is clear, and between them are doubtful matters about which many people do not know. Whoever guards against the doubtful protects their religion and honour... Truly, in the body is a morsel of flesh: if it is sound, the whole body is sound, and if it is corrupt, the whole body is corrupt. Truly, it is the heart.”

Bukhari & Muslim

Most of life is clearly fine and a little clearly isn't; wisdom lives at the blurry border, and everything ultimately runs through the state of the heart.

“The religion is sincere counsel. We asked: to whom? He said: to Allah, His Book, His Messenger, the leaders of the Muslims, and their common people.”

Muslim

One word, nasiha, meaning sincerity, loyalty, and wanting good for the other: Islam compressed to its social essence.

“I have been commanded to fight the people until they testify that there is no god but Allah and that Muhammad is the Messenger of Allah, establish prayer, and give zakat; if they do that, their blood and property are protected from me except by the right of Islam, and their reckoning is with Allah.”

Bukhari & Muslim

A hadith about seventh-century state conflict, bounded by its context and by the Quran's "no compulsion in religion"; its enduring legal content is the second half: protection, and judgement belonging to God alone.

“What I have forbidden you, avoid; what I have commanded you, do as much of as you are able. Those before you were destroyed only by excessive questioning and disagreeing with their prophets.”

Bukhari & Muslim

"As much as you are able" is load-bearing: Islam scales to capacity, and religious perfectionism is treated here as a disease, not a virtue.

“Allah is pure and accepts only what is pure... He mentioned a traveller, dishevelled and dusty, stretching his hands to the sky: O Lord, O Lord! while his food is haram, his drink is haram, his clothing is haram, and he is nourished by haram: so how can he be answered?”

Muslim

Du'a runs on clean fuel. How you earn is not separate from how you pray.

“Leave that which makes you doubt for that which does not make you doubt.”

Tirmidhi & Nasa'i

Eleven words that resolve half of life's grey areas. Peace of heart is itself evidence.

“Part of the excellence of a person's Islam is leaving what does not concern them.”

Tirmidhi

Gossip, prying, doomscrolling, other people's business: a fourteen-century-old cure for problems we think are new.

“None of you truly believes until he loves for his brother what he loves for himself.”

Bukhari & Muslim

Islam's golden rule, stated as a condition of faith itself, not merely good manners.

“The blood of a Muslim is not lawful except in three cases: a life for a life in just retribution, the married person who commits adultery, and the one who abandons the religion and splits from the community.”

Bukhari & Muslim

A statement of criminal law for a functioning court system with extreme evidentiary standards, never a licence for individuals; its headline is the opening: life is inviolable by default.

“Whoever believes in Allah and the Last Day, let him speak good or remain silent; whoever believes in Allah and the Last Day, let him honour his neighbour; and whoever believes in Allah and the Last Day, let him honour his guest.”

Bukhari & Muslim

Three tests of belief, all social: your tongue, your neighbour, your table.

“A man said to the Prophet ﷺ: counsel me. He said: Do not get angry. The man repeated the request several times; he said: Do not get angry.”

Bukhari

Asked for a whole life-manual, he gave two words, three times. Most ruin, in families and history, traces back to someone's unmanaged anger.

“Allah has prescribed excellence (ihsan) in all things. So if you kill, kill well; and if you slaughter, slaughter well: let one of you sharpen his blade and spare suffering to the animal he slaughters.”

Muslim

Even at the hardest edge of life, mercy is legislated down to the sharpness of the knife. Nothing is exempt from doing it beautifully.

“Be mindful of Allah wherever you are; follow a bad deed with a good deed and it will erase it; and treat people with good character.”

Tirmidhi

A complete spiritual method in one line: God-awareness, immediate repair, and kindness. Note the realism: bad deeds are assumed; the plan is what follows them.

“Young man, I shall teach you words: Be mindful of Allah and He will protect you. Be mindful of Allah and you will find Him before you. When you ask, ask Allah; when you seek help, seek it from Allah. Know that if the whole nation gathered to benefit you, they could only benefit you with what Allah has written for you; and if they gathered to harm you, they could only harm you with what Allah has written against you. The pens have been lifted and the pages have dried.”

Tirmidhi

Perhaps the most memorised hadith of all: the end of people-pleasing and the end of fear, in one paragraph addressed to a teenager.

“Among the words people have retained from the first prophethood: if you feel no shame, do as you wish.”

Bukhari

Haya (healthy shame, modesty) is the conscience's immune system; the hadith's irony bites: once it's gone, nothing else will stop you.

“A man said: O Messenger of Allah, tell me something about Islam I need ask no one after you. He said: Say "I believe in Allah", and then be steadfast.”

Muslim

Istiqama, steadfastness: not intensity but continuity. The whole path is two steps: believe, then keep walking.

“A man asked: if I pray the prescribed prayers, fast Ramadan, treat the halal as halal and the haram as haram, and add nothing more, will I enter Paradise? He said: Yes.”

Muslim

Official confirmation that the baseline is enough. Extra devotion is love, not entry requirement.

“Purity is half of faith. Alhamdulillah fills the scale, and SubhanAllah and Alhamdulillah together fill what is between the heavens and the earth. Prayer is a light, charity is proof, patience is illumination, and the Quran is an argument for you or against you. Everyone starts the day selling their soul: either freeing it or destroying it.”

Muslim

A cascade of images ending with the day's oldest transaction: every morning, you sell yourself to something.

“Allah says: O My servants, I have forbidden injustice for Myself and forbidden it among you, so do not wrong one another... O My servants, all of you are astray except those I guide, so seek guidance from Me... O My servants, were the first and last of you, human and jinn, as pious as the most pious heart among you, it would not increase My kingdom in anything... It is only your deeds that I record for you and then recompense you for; so whoever finds good, let him praise Allah, and whoever finds otherwise, let him blame only himself.”

Muslim

The most majestic hadith qudsi: God needs nothing from us, so everything He asks of us is for us.

“The wealthy have taken the rewards, they pray as we pray and fast as we fast, but they give charity from their surplus! He said: Has Allah not given you things to give? Every SubhanAllah is charity, every Allahu Akbar is charity, every Alhamdulillah is charity... enjoining good is charity, forbidding wrong is charity, and even in your marital intimacy there is charity.”

Muslim

The poor companions complained that the rich could out-give them; the answer democratised generosity forever.

“Every joint of a person owes charity each day the sun rises: reconciling justly between two people is charity, helping a man onto his mount or lifting his baggage is charity, a good word is charity, every step you walk to prayer is charity, and removing something harmful from the road is charity.”

Bukhari & Muslim

The body itself is a debt, repaid in small kindnesses. Note how cheap the currency is: a word, a step, a cleared path.

“Righteousness is good character, and sin is what wavers in your chest and you would hate people to see.”

Muslim

Two portable instruments: character as the measure of virtue, and that inner flinch as the detector of sin. You already know, this hadith says. You already know.

“He gave us a sermon at which hearts trembled and eyes wept... He said: hold to my Sunnah and the way of the rightly-guided caliphs after me; bite onto it with the molars. And beware of newly invented matters in religion.”

Abu Dawud & Tirmidhi

A farewell-flavoured counsel: when confusion multiplies, grip the original tighter.

“Shall I not point you to the gates of goodness? Fasting is a shield; charity extinguishes sin as water extinguishes fire; and the prayer of a person in the depths of the night... Then he said: Shall I tell you what holds it all? He took hold of his tongue and said: Restrain this. I said: Are we held accountable for what we say? He said: May your mother be bereaved of you, Mu'adh! Does anything topple people onto their faces in the Fire but the harvests of their tongues?”

Tirmidhi

A guided tour of devotion that ends at the tongue, the small muscle carrying the heaviest liability.

“Allah has prescribed obligations, so do not neglect them; He has set limits, so do not transgress them; He has forbidden things, so do not violate them; and He has remained silent about things as a mercy to you, not out of forgetfulness, so do not go searching after them.”

Daraqutni and others

The silence of scripture is deliberate spaciousness. What God left open, leave open.

“Be detached from the world and Allah will love you; be detached from what people possess and people will love you.”

Ibn Majah

Zuhd is not poverty; it's the loosened grip. And the second half is free social wisdom: nobody loves the one who eyes their things.

“There shall be no harming and no reciprocating of harm.”

Ibn Majah & Daraqutni

Four Arabic words (la darar wa la dirar) that generate whole volumes of Islamic law: harm is forbidden even in retaliation's clothing.

“Were people given whatever they claimed, men would claim the wealth and blood of others. But the burden of proof is upon the claimant, and the oath is upon the one who denies.”

Bayhaqi; parts in Bukhari & Muslim

Due process as religion: evidence before accusation, a millennium before it became legal boilerplate.

“Whoever among you sees a wrong, let him change it with his hand; if he cannot, then with his tongue; if he cannot, then with his heart, and that is the weakest of faith.”

Muslim

A ladder of moral responsibility scaled to power: act, speak, or at minimum refuse to approve inwardly. Indifference is not on the ladder.

“Do not envy one another, do not inflate prices against one another, do not hate one another, do not turn away from one another... Be, O servants of Allah, brothers. The Muslim is the brother of the Muslim: he does not wrong him, forsake him, or despise him. Taqwa is here, and he pointed to his chest three times... All of the Muslim is inviolable to the Muslim: his blood, his property, and his honour.”

Muslim

The community's constitution. "Taqwa is here": piety is invisible, so contempt for another person is always ignorant.

“Whoever relieves a believer of a hardship of this world, Allah will relieve him of a hardship of the Day of Judgement... Allah helps the servant as long as the servant helps his brother. Whoever travels a path seeking knowledge, Allah eases for him a path to Paradise...”

Muslim

Heaven's economics: mercy shown here is banked there, and God's help tracks your helpfulness.

“Allah has written down the good deeds and the bad. Whoever intends a good deed and does not do it, Allah writes it as a complete good deed; if he intends it and does it, it is written as ten up to seven hundred times over, or many times more. And whoever intends a bad deed and does not do it, Allah writes it as a complete good deed; if he intends it and does it, it is written as a single bad deed.”

Bukhari & Muslim

Read the exchange rate: good multiplied up to seven hundred, evil counted once, and resisting a temptation credited as virtue. The scales are openly rigged in your favour.

“Allah says: Whoever shows enmity to a friend of Mine, I declare war upon him. My servant draws near to Me with nothing more beloved to Me than what I have made obligatory upon him. And My servant continues to draw near to Me with voluntary deeds until I love him; and when I love him, I am his hearing with which he hears, his sight with which he sees, his hand with which he strikes, and his foot with which he walks. Were he to ask of Me, I would surely give him; were he to seek refuge in Me, I would surely protect him.”

Bukhari

The summit of the collection: the path to God's love starts with the boring obligations, and ends with a life entirely inhabited by Him.

“Allah has pardoned my nation for mistakes, forgetfulness, and what they are compelled to do.”

Ibn Majah & Bayhaqi

The three great excuses, guaranteed at the highest level. Islam judges the chosen, not the accidental.

“The Prophet ﷺ took me by the shoulder and said: Be in this world as though a stranger or a traveller on a road. And Ibn Umar would say: In the evening, do not expect the morning; in the morning, do not expect the evening. Take from your health for your illness, and from your life for your death.”

Bukhari

Travellers pack light, don't redecorate the hotel, and keep the destination in mind. That, it says, is the sane posture toward a temporary world.

“None of you truly believes until his desire follows what I have brought.”

An early collection (Nawawi grades it sound)

The finish line of discipleship: not grudging compliance but retrained wanting, when what God asks and what you want stop being rivals.

“Allah says: O son of Adam, so long as you call upon Me and hope in Me, I will forgive you for what you have done, and I will not mind. O son of Adam, were your sins to reach the clouds of the sky, then you sought My forgiveness, I would forgive you. O son of Adam, were you to come to Me with sins nearly as great as the earth, then meet Me associating nothing with Me, I would come to you with its like in forgiveness.”

Tirmidhi

Nawawi chose to end here, and no summary should dilute it: sins the size of the earth, met with forgiveness the same size. This is the last word of the forty.