أَلَم يَرَوا أَنّا جَعَلنَا اللَّيلَ لِيَسكُنوا فيهِ وَالنَّهارَ مُبصِرًا ۚ إِنَّ في ذٰلِكَ لَآياتٍ لِقَومٍ يُؤمِنونَ

Do they not see that We made the night that they may rest therein and the day giving sight? Indeed in that are signs for a people who believe.