1يا أَيُّهَا النّاسُ اتَّقوا رَبَّكُم ۚ إِنَّ زَلزَلَةَ السّاعَةِ شَيءٌ عَظيمٌ(Saheeh International)Al-Ḥajj: The Pilgrimage.O mankind, fear your Lord. Indeed, the convulsion of the [final] Hour is a terrible thing.