And a sign for them is the night. We remove from it [the light of] day, so they are [left] in darkness.
The Saheeh International Quran Translation
وَءَايَةٌ لَّهُمُ ٱلَّيْلُ نَسْلَخُ مِنْهُ ٱلنَّهَارَ فَإِذَا هُم مُّظْلِمُونَAnd a sign for them is the night. We remove from it [the light of] day, so they are [left] in darkness.