Al-Anfal - 8:37

لِيَمِيزَ اللّهُ الْخَبِيثَ مِنَ الطَّيِّبِ وَيَجْعَلَ الْخَبِيثَ بَعْضَهُ عَلَىَ بَعْضٍ فَيَرْكُمَهُ جَمِيعاً فَيَجْعَلَهُ فِي جَهَنَّمَ أُوْلَـئِكَ هُمُ الْخَاسِرُونَ
[8:37]
That Allah might separate the impure from the good, and put the impure, some of it upon the other, and pile it up together, then cast it into hell; these it is that are the losers.
In order that Allah may separate the impure from the pure, put the impure, one on another, heap them together, and cast them into Hell. They will be the ones to have lost.
That Allah may separate the wicked from the good, The wicked will He place piece upon piece, and heap them all together, and consign them unto hell. Such verily are the losers.