﴿ كَلَّآ إِنَّهُمْ عَن رَّبِّهِمْ يَوْمَئِذٍۢ لَّمَحْجُوبُونَ ﴾

“Nay, verily, from [the grace of] their Sustainer shall they on that Day be debarred;”

(Nay) truly, O Muhammad, (but surely on that day) the Day of Judgement (they) i.e. the deniers of the Day of Judgement (will be covered from (the mercy of) their Lord) they will be prevented from beholding their Lord while the believers will behold Him.