هُم

فَإِذَا هُم بِٱلسَّاهِرَةِ

And suddenly they will be [alert] upon the earth's surface.

وَٱلَّذِينَ هُم بِشَهَـٰدَٰتِهِمْ قَآئِمُونَ

And those who are in their testimonies upright

وَٱلَّذِينَ هُم بِـَٔايَـٰتِ رَبِّهِمْ يُؤْمِنُونَ

And they who believe in the signs of their Lord