Al-Kahf

[All] praise is [due] to Allāh, who has sent down upon His Servant [Muḥammad (ﷺ)] the Book and has not made therein any deviance.

[He has made it] straight, to warn of severe punishment from Him and to give good tidings to the believers who do righteous deeds that they will have a good reward [i.e., Paradise].

In which they will remain forever

And to warn those who say, "Allāh has taken a son".

They have no knowledge of it, nor had their fathers. Grave is the word that comes out of their mouths; they speak not except a lie.

Then perhaps you would kill yourself through grief over them, [O Muḥammad], if they do not believe in this message, [and] out of sorrow.

Indeed, We have made that which is on the earth adornment for it that We may test them [as to] which of them is best in deed.

And indeed, We will make that which is upon it [into] a barren ground.

Or have you thought that the companions of the cave and the inscription were, among Our signs, a wonder?

[Mention] when the youths retreated to the cave and said, "Our Lord, grant us from Yourself mercy and prepare for us from our affair right guidance."