The Trumpet (Trumpet of Israfil)

۞ وَتَرَكْنَا بَعْضَهُمْ يَوْمَئِذٍ يَمُوجُ فِى بَعْضٍ ۖ وَنُفِخَ فِى ٱلصُّورِ فَجَمَعْنَـٰهُمْ جَمْعًا

And We will leave them that day surging over each other, and [then] the Horn will be blown, and We will assemble them in [one] assembly.