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
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."
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
…