وَهُوَ الَّذِي جَعَلَ اللَّيْلَ وَالنَّهَارَ خِلْفَةً لِمَنْ أَرَادَ أَنْ يَذَّكَّرَ أَوْ أَرَادَ شُكُورًا ٦٢
And it is He Who made the Night and the Day to follow each other: for such as have the will to celebrate His praises or to show their gratitude.