Al Furqan, 62 Ayah
25:62
وَهُوَ ٱلَّذِي جَعَلَ ٱلَّيۡلَ وَٱلنَّهَارَ خِلۡفَةٗ لِّمَنۡ أَرَادَ أَن يَذَّكَّرَ أَوۡ أَرَادَ شُكُورٗا ٦٢
Wa Huwa Al-Ladhī Ja`ala Al-Layla Wa An-Nahāra Khilfatan Liman 'Arāda 'An Yadhdhakkara 'Aw 'Arāda Shukūrāan
And it is He who has made the night and the day in succession for whoever desires to remember or desires gratitude.