وَهُوَ الَّذِي جَعَلَ اللَّيْلَ وَالنَّهَارَ خِلْفَةً لِّمَنْ أَرَادَ أَن يَذَّكَّرَ أَوْ أَرَادَ شُكُورًا (62)
(25:62) He it is Who caused the night and the day to succeed each other so that everyone who desires may learn a lesson or become grateful. *77
*77) The observation and deep consideration of the wonderful phenomenon of the alternation of the day and night is a proof of Tauhid and His Providence so that man may feel grateful to Him and prostrate himself before Him in all humility.