وَآيَةٌ لَهُمُ اللَّيْلُ نَسْلَخُ مِنْهُ النَّهَارَ فَإِذَا هُمْ مُظْلِمُونَ 37
And a Sign for them is the Night: We withdraw therefrom the Day, and behold they are plunged in darkness;