ح ق ف

وَٱذۡكُرۡ أَخَا عَادٍ إِذۡ أَنذَرَ قَوۡمَهُۥ بِٱلۡأَحۡقَافِ وَقَدۡ خَلَتِ ٱلنُّذُرُ مِنۢ بَيۡنِ يَدَيۡهِ وَمِنۡ خَلۡفِهِۦٓ أَلَّا تَعۡبُدُوٓاْ إِلَّا ٱللَّهَ إِنِّيٓ أَخَافُ عَلَيۡكُمۡ عَذَابَ يَوۡمٍ عَظِيمٖ ٢١

وَاذْكُرْ اَخَا عَادٍؕ اِذْ اَنْذَرَ قَوْمَهٗ بِالْاَحْقَافِ وَقَدْ خَلَتِ النُّذُرُ مِنْۢ بَيْنِ يَدَيْهِ وَمِنْ خَلْفِهٖٓ اَلَّا تَعْبُدُوْٓا اِلَّا اللّٰهَؕ اِنِّيْٓ اَخَافُ عَلَيْكُمْ عَذَابَ يَوْمٍ عَظِيْمٍ ۝٢١

And mention, [O Muḥammad], the brother of ʿAad, when he warned his people in [the region of] al-Aḥqāf - and warners had already passed on before him and after him - [saying], "Do not worship except Allāh. Indeed, I fear for you the punishment of a terrible day."