Al-Kahf 18:21

<h2>How the People of the City came to know about Them; building a Memorial over the Cave</h2><div class="arabic uthmani">وَكَذلِكَ أَعْثَرْنَا عَلَيْهِمْ</div><p>(And thus We made their case known,) means, `We caused the people to find them.'</p><div class="arabic uthmani">لِيَعْلَمُواْ أَنَّ وَعْدَ اللَّهِ حَقٌّ وَأَنَّ السَّاعَةَ لاَ رَيْبَ فِيهَا</div><p>(that they might know that the promise of Allah is true, and that there can be no doubt about the Hour.) Several scholars of the Salaf mentioned that the people of that time were skeptical about the Resurrection. `Ikrimah said: "There was a group of them who said that the souls would be resurrected but not the bodies, so Allah resurrected the people of the Cave as a sign and proof of resurrection." They mentioned that when they wanted to send one of their members out to the city to buy them something to eat, he disguised himself and set out walking by a different route, until he reached the city, which they said was called Daqsus. He thought that it was not long since he left it, but in fact century after century, generation after generation, nation after nation had passed, and the country and its people had changed. He saw no local landmarks …

And in like manner We disclosed them (to the people of the city) that they might know that the promise of Allah is true, and that, as for the Hour, there is no doubt concerning it. When (the people of the city) disputed of their case among themselves, they said: Build over them a building; their Lord knoweth best concerning them. Those who won their point said: We verily shall build a place of worship over them.

Thus did We make their case known to the people, that they might know that the promise of Allah is true, and that there can be no doubt about the Hour of Judgment. Behold, they dispute among themselves as to their affair. (Some) said, "Construct a building over them": Their Lord knows best about them: those who prevailed over their affair said, "Let us surely build a place of worship over them."

And thus We made their case known to the people, that they might know that the Promise of Allah is true, and that there can be no doubt about the Hour. (Remember) when they (the people of the city) disputed among themselves about their case, they said: "Construct a building over them, their Lord knows best about them," (then) those who won their point said (most probably the disbelievers): "We verily shall build a place of worship over them."

So it was, that We caused them to be discovered, that they would know that the promise of God is true, and that of the Hour there is no doubt. As they were disputing their case among themselves, they said, “Build over them a building.” Their Lord knows best about them. Those who prevailed over their case said, “We will set up over them a place of worship.”