Quran 75.16-24
Stir not thy tongue herewith to hasten it. Lo! upon Us (resteth) the putting together thereof and the reading thereof. And when We read it, follow thou the reading; Then lo! upon Us (resteth) the explanation thereof. Nay, but ye do love the fleeting Now And neglect the Hereafter. That day will faces be resplendent, Looking toward their Lord; And that day will other faces be despondent,