Surah Al-Ahqaf
۞ وَٱذْكُرْ أَخَا عَادٍ إِذْ أَنذَرَ قَوْمَهُۥ بِٱلْأَحْقَافِ وَقَدْ خَلَتِ ٱلنُّذُرُ مِنۢ بَيْنِ يَدَيْهِ وَمِنْ خَلْفِهِۦٓ أَلَّا تَعْبُدُوٓا۟ إِلَّا ٱللَّهَ إِنِّىٓ أَخَافُ عَلَيْكُمْ عَذَابَ يَوْمٍ عَظِيمٍ
Ważkur akhā ‘ād(in), iż anżara qaumahū bil-aḥqāfi wa qad khalatin-nużuru mim baini yadaihi wa min khalfihī allā ta‘budū illallāh(a), innī akhāfu ‘alaikum ‘ażāba yaumin ‘aẓīm(in).
And mention, [O Muhammad], the brother of 'Aad, when he warned his people in the [region of] al-Ahqaf - and warners had already passed on before him and after him - [saying], "Do not worship except Allah. Indeed, I fear for you the punishment of a terrible day."
📝 Footnotes
691) The Ahqaf Valley refers to the sandy valleys located in the southern part of the Arabian Peninsula.