(Yaaseen) 36 : 37
وَآيَةٌ لَهُمُ اللَّيْلُ نَسْلَخُ مِنْهُ النَّهَارَ فَإِذَا هُمْ مُظْلِمُونَ
And the night is a sign for them, We withdraw the day from it, and then they are plunged into darkness.
See explanation 3: 26-27 and 35: 13.