Surah Az-Zumar, verse 5

خَلَقَ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضَ بِٱلْحَقِّ ۖ يُكَوِّرُ ٱلَّيْلَ عَلَى ٱلنَّهَارِ وَيُكَوِّرُ ٱلنَّهَارَ عَلَى ٱلَّيْلِ ۖ وَسَخَّرَ ٱلشَّمْسَ وَٱلْقَمَرَ ۖ كُلٌّ يَجْرِى لِأَجَلٍ مُّسَمًّى ۗ أَلَا هُوَ ٱلْعَزِيزُ ٱلْغَفَّـٰرُ ﴿٥﴾

39:5 He created the heavens and earth for a true purpose. He wraps the night over the day and wraps the day over the night. He has subjected the sun and the moon, each running its course for an appointed term. Indeed, He is the All-Mighty, Most Forgiving