The First Ten Verses of Surah Al-Kahf: Protection From the Dajjal

Few trials in the future of this world are spoken of with the gravity that surrounds the Dajjal, the great deceiver whose appearance will test the faith of everyone alive to see it. Against that trial, the Prophet ﷺ did not leave his ummah unarmed. He pointed to a shield that is small enough for anyone to carry and specific enough for anyone to follow: ten verses — the first ten verses of Surah Al-Kahf — learned by heart.

The promise attached to those ten verses is not vague comfort. It is a named protection from a named danger, given in a single sentence by the Messenger of Allah ﷺ and preserved in Sahih Muslim. This article stays with that one sentence and with the opening verse of the surah itself: what the Prophet ﷺ promised, what the words “learns by heart” actually ask of us, and what the very first verse of Al-Kahf declares about the Book from which the shield is taken.

1. The Promise in the Prophet’s ﷺ Own Words

The Companion Abu Darda’ reported the words of the Messenger of Allah ﷺ on this matter, and they leave no room for misunderstanding about either the act or the reward:

مَنْ حَفِظَ عَشْرَ آيَاتٍ مِنْ أَوَّلِ سُورَةِ الْكَهْفِ عُصِمَ مِنَ الدَّجَّالِ

“If anyone learns by heart the first ten verses of the Surah al-Kahf, he will be protected from the Dajjal.” (Sahih Muslim 809a — Sahih)

Notice how complete the sentence is. It names the portion — “the first ten verses of the Surah al-Kahf” (Sahih Muslim 809a — Sahih) — not the whole surah, not a selection of one’s own choosing, but the opening ten verses of the eighteenth chapter of the Quran. It names the act — learning them by heart. And it names the outcome without condition or qualification: “he will be protected from the Dajjal” (Sahih Muslim 809a — Sahih).

That precision is itself a mercy. A believer does not have to guess how much is enough, or wonder whether some larger portion was intended. Ten verses stand at the door of the surah, and the promise stands with them.

2. “Learns by Heart”: Memorisation, Not Just Reading

The hadith does not say “whoever reads” the first ten verses, or “whoever keeps them in his house.” It says — in its own stored wording — that the protected person is the one who “learns by heart the first ten verses of the Surah al-Kahf” (Sahih Muslim 809a — Sahih). The verses are to be carried inside the person, in the memory, where no book needs to be opened and no light needs to be found.

That detail matters for the very situation the hadith addresses. A trial is not met with a library; it is met with what a person holds within himself. What has been learned by heart travels with its owner into every place and every moment — into confusion, into fear, into days when the truth is shouted down and falsehood is made to look like light. The one who has memorised these verses carries his protection the way he carries his own name: it cannot be taken from his hands, because it was never only in his hands.

Memorisation also changes the relationship between a believer and a passage. A verse read once is a verse visited; a verse learned by heart is a verse lived with. It returns in prayer, it returns in the quiet of the night, it returns uninvited in the middle of ordinary days — and each return engraves it deeper. The Prophet ﷺ attached the promise of protection to precisely this kind of possession: not acquaintance with the ten verses, but ownership of them.

There is something else the phrase teaches. What a person learns by heart, he can give away without losing: he can recite it to his children, teach it to a friend, and whisper it to himself in a place where no mushaf can be carried. The ten verses memorised by one believer become a seed in a household. Parents who carry them can place them in the hearts of their children long before those children can weigh the danger the verses guard against — so that the protection the Prophet ﷺ described passes from heart to heart the way faith itself does, by teaching and by love.

3. The Surah Opens by Praising the Book Itself

Before Surah Al-Kahf tells any story or issues any command, its very first verse turns the reader’s attention to the Book itself and to the One who sent it down:

ٱلْحَمْدُ لِلَّهِ ٱلَّذِىٓ أَنزَلَ عَلَىٰ عَبْدِهِ ٱلْكِتَـٰبَ وَلَمْ يَجْعَل لَّهُۥ عِوَجَا ۜ

“Praise belongs to Allah who has sent down the Book to His servant, and allowed no crookedness in it,” (Quran 18:1)

This is where the ten protected verses begin. The first thing a person memorising them takes into his heart is not a narrative but a declaration: all praise belongs to Allah, who “has sent down the Book to His servant” (Quran 18:1) — the revelation given to Muhammad ﷺ is a descent of mercy from Allah, not an invention of men. And the Book that was sent down carries a quality stated in the same breath: Allah “allowed no crookedness in it” (Quran 18:1).

So the shield the Prophet ﷺ appointed opens with the believer affirming, from memory, that the guidance in his hands is straight, sound and entirely from Allah. The ten verses are not a charm detached from meaning; their opening line is a confession of faith in the Book itself.

Notice, too, where the verse begins: with praise. Before the surah unfolds anything else, it teaches the tongue to say that praise belongs to Allah for the gift of the Book. A believer who learns these verses by heart is therefore not only storing information; he is storing gratitude. Every time the first verse rises in his memory, it reminds him that guidance was sent down to him as a favour from his Lord — “Praise belongs to Allah who has sent down the Book to His servant” (Quran 18:1) — and a heart trained to begin with gratitude is already being turned away from the arrogance on which deception feeds.

4. “No Crookedness in It”: A Straight Measure for a Crooked Trial

Consider the pairing the texts put before us. On one side stands the Dajjal — and his very name announces his method, for he is the deceiver, the one whose whole power lies in making the false appear true. On the other side stands a Book about which Allah Himself declares, in the first verse of this surah, that He “allowed no crookedness in it” (Quran 18:1).

Deception can only succeed where the measure of truth is bent, forgotten or never learned. A crooked claim is exposed the moment it is held against something perfectly straight. This is why it is so fitting that the protection the Prophet ﷺ named begins at the surah that begins by declaring the straightness of the Quran: the believer who has learned these verses by heart carries the straight measure inside himself, in the place where deception must do its work — his own heart and mind.

And the promise is not that the memoriser will merely recognise the deception. The hadith’s words are wider and stronger: “he will be protected from the Dajjal” (Sahih Muslim 809a — Sahih). Protection is Allah’s act toward His servant; the servant’s part is the one named in the same sentence — to learn by heart the first ten verses of the Surah al-Kahf. We do our named part, and we trust the One who made the promise for the rest.

5. Protection Prepared Before the Trial Arrives

There is a timing built into this hadith that is easy to miss. The learning happens now, in ordinary days, long before any trial appears; the protection is spoken of for a day that has not yet come: “he will be protected from the Dajjal” (Sahih Muslim 809a — Sahih). The hadith joins a present act to a future deliverance, and in doing so it teaches the believer to prepare in calm weather for a storm he hopes never to see.

This is the pattern of sincere faith. The one who waits until the deceiver stands before him to begin learning will be trying to memorise while the ground shakes. The one who learns the ten verses today — quietly, steadily, in days of ease — has already placed his shield on his arm. Whether the trial comes in his lifetime or not, he loses nothing: he has gained ten verses of the Book of Allah in his memory, beginning with the praise of Allah and the declaration that His Book has no crookedness in it. And if the trial does come in his days, he meets it as one of those of whom the Prophet ﷺ said: “If anyone learns by heart the first ten verses of the Surah al-Kahf, he will be protected from the Dajjal.” (Sahih Muslim 809a — Sahih)

The smallness of the portion belongs to the same mercy. Ten verses are within the reach of a child, of an elder whose memory is slowing, of a new Muslim still learning the letters, of a worker whose day leaves him only minutes. The Prophet ﷺ did not set the shield at a hundred verses or a whole surah; he set it at the opening ten of Al-Kahf, a door low enough for every believer to walk through. No one who hears this hadith can honestly say the protection was priced beyond him. It costs days of gentle effort — and it promises safety in the one trial where safety will be worth more than everything else a person owns.

6. A Simple, Steady Plan for Learning the Ten Verses

Ten verses is a portion small enough to begin today and finish within days, yet it asks for the same care as any memorisation. A steady plan serves better than a rushed one:

– One verse at a time. Take the first verse — the verse of praise that opens the surah — repeat it until it holds, then move to the second, joining each new verse to the ones before it. – Understand what you carry. Read the meaning of each verse as you learn it, so the heart memorises with the tongue; the first verse alone teaches praise, revelation and the straightness of the Book. – Use them in prayer. Recite the verses you have learned in your salah, where repetition is built into the day and the words are weighed as worship. – Review before you add. Begin each sitting by reciting yesterday’s portion from memory; a verse kept is worth more than two verses hurried.

For a fuller method — how to memorise in small portions, retain what you have learned and build a lasting routine — see our complete guide on how to memorise the Quran. The same steady approach that serves the whole Book serves these ten verses, and these ten verses are an excellent place to begin.

7. Ten Verses Within a Whole Surah of Virtues

This article has kept to a single promise: the protection attached to the first ten verses learned by heart. Surah Al-Kahf is wider than that one promise, and its other virtues — including the light that its recitation brings on the day of Friday — are gathered in our sister guide to the virtues of Surah Al-Kahf. The ten verses are the door of the surah; that guide walks through the whole house.

The habit these verses build also belongs to a larger life with the Quran. Reading it regularly is itself among the most beloved of works, as our article on the virtues of reading the Quran explains. And the believer who loves portions of the Book carried as protection will recognise the same pattern in the nightly recitation described in our guide to the virtues of Surah Al-Mulk and in the short, powerful chapters gathered in our article on the virtues of the three Quls. Portion by portion, the Quran becomes the companion a Muslim carries within himself — and among those portions, the Prophet ﷺ marked the opening of Al-Kahf with a promise unlike any other: protection from the greatest deception the world will ever stage.

Frequently Asked Questions

Q1. What exactly did the Prophet ﷺ promise for the first ten verses of Surah Al-Kahf? He promised protection from the Dajjal to the one who memorises them: “If anyone learns by heart the first ten verses of the Surah al-Kahf, he will be protected from the Dajjal.” (Sahih Muslim 809a — Sahih)

Q2. Is it enough to read the ten verses, or must they be memorised? The hadith specifies memorisation. Its words describe the protected person as the one who “learns by heart the first ten verses of the Surah al-Kahf” (Sahih Muslim 809a — Sahih) — the verses are to be held in the memory, not only read from the page.

Q3. Who narrated this hadith, and where is it recorded? It was reported by the Companion Abu Darda’, who said: “Abu Darda’ reported Allah’s Messenger (ﷺ) as saying: If anyone learns by heart the first ten verses of the Surah al-Kahf, he will be protected from the Dajjal.” (Sahih Muslim 809a — Sahih) It is recorded in Sahih Muslim, and its grade is Sahih.

Q4. What does the opening verse of Surah Al-Kahf declare? The surah opens with praise of Allah and a declaration about the Book itself: “Praise belongs to Allah who has sent down the Book to His servant, and allowed no crookedness in it,” (Quran 18:1) The first of the ten verses therefore affirms that the Quran was sent down by Allah to His servant and that there is no crookedness in it.

Q5. Why would these verses protect a person from the Dajjal? The texts give the promise and the ground together. The protection itself is promised by the Prophet ﷺ to the one who learns the verses by heart: “he will be protected from the Dajjal” (Sahih Muslim 809a — Sahih). And the verses begin with a Book of which Allah declares He “allowed no crookedness in it” (Quran 18:1) — the straight word of Allah, carried in the heart, is the believer’s measure against the deceiver whose whole trade is crookedness.