37وَآيَةٌ لَهُمُ اللَّيلُ نَسلَخُ مِنهُ النَّهارَ فَإِذا هُم مُظلِمونَ(Irfan-ul-Quran)And (also) a sign for them is the night: (how) We draw the day out from it! So then they are left in darkness!