67هُوَ الَّذي جَعَلَ لَكُمُ اللَّيلَ لِتَسكُنوا فيهِ وَالنَّهارَ مُبصِرًا ۚ إِنَّ في ذٰلِكَ لَآياتٍ لِقَومٍ يَسمَعونَGeorge SaleIt is He who hath ordained the night for you, that ye may take your rest therein, and the clear day for labour: Verily herein are signs unto people who hearken.