Al-Kahf 18:21 وكذالك اعثرنا عليهم ليعلموا ان وعد الله حق وان الساعة لا ريب فيها اذ يتنازعون بينهم امرهم فقالوا ابنوا عليهم بنيانا ربهم اعلم بهم قال الذين غلبوا على امرهم لنتخذن عليهم مسجدا ٢١
وَكَذَٰلِكَ
أَعۡثَرۡنَا
عَلَيۡهِمۡ
لِيَعۡلَمُوٓاْ
أَنَّ
وَعۡدَ
ٱللَّهِ
حَقّٞ
وَأَنَّ
ٱلسَّاعَةَ
لَا
رَيۡبَ
فِيهَآ
إِذۡ
يَتَنَٰزَعُونَ
بَيۡنَهُمۡ
أَمۡرَهُمۡۖ
فَقَالُواْ
ٱبۡنُواْ
عَلَيۡهِم
بُنۡيَٰنٗاۖ
رَّبُّهُمۡ
أَعۡلَمُ
بِهِمۡۚ
قَالَ
ٱلَّذِينَ
غَلَبُواْ
عَلَىٰٓ
أَمۡرِهِمۡ
لَنَتَّخِذَنَّ
عَلَيۡهِم
مَّسۡجِدٗا
٢١
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.
Read Tafsir
Ibn Kathir (Abridged)
How the People of the City came to know about Them; building a Memorial over the Cave
وَكَذلِكَ أَعْثَرْنَا عَلَيْهِمْ
(And thus We made their case known,) means, `We caused the people to find them.'
لِيَعْلَمُواْ أَنَّ وَعْدَ اللَّهِ حَقٌّ وَأَنَّ السَّاعَةَ لاَ رَيْبَ فِيهَا
(that they might know that
…How the People of the City came to know about Them; building a Memorial over the Cave
وَكَذلِكَ أَعْثَرْنَا عَلَيْهِمْ
(And thus We made their case know
…