57:6
يُولِجُ ٱلَّيْلَ فِى ٱلنَّهَارِ وَيُولِجُ ٱلنَّهَارَ فِى ٱلَّيْلِ ۚ وَهُوَ عَلِيمٌۢ بِذَاتِ ٱلصُّدُورِ
Yoolijul laila fin nahaari wa yoolijun nahaara fil lail; wa Huwa 'Aleemum bizaatis sudoor
He merges Night into Day, and He merges Day into Night; and He has full knowledge of the secrets of (all) hearts.