ذَٰلِكَ بِأَنَّ ٱللَّهَ يُولِجُ ٱلَّيْلَ فِى ٱلنَّهَارِ وَيُولِجُ ٱلنَّهَارَ فِى ٱلَّيْلِ وَأَنَّ ٱللَّهَ سَمِيعٌۢ بَصِيرٌ

Thalika bi-anna Allaha yoolijuallayla fee annahari wayooliju annaharafee allayli waanna Allaha sameeAAun baseer

That is because Allāh causes the night to enter the day and causes the day to enter the night and because Allāh is Hearing and Seeing.