26:189
فَكَذَّبُوهُ فَأَخَذَهُمْ عَذَابُ يَوْمِ ٱلظُّلَّةِ ۚ إِنَّهُۥ كَانَ عَذَابَ يَوْمٍ عَظِيمٍ ١٨٩
Saheeh International
And they denied him, so the punishment of the day of the black cloud seized them. Indeed, it was the punishment of a terrible day.