أَوۡ يُزَوِّجُهُمۡ ذُكۡرَانٗا وَإِنَٰثٗاۖ وَيَجۡعَلُ مَن يَشَآءُ عَقِيمًاۚ إِنَّهُۥ عَلِيمٞ قَدِيرٞ

or He combines them males and females, and makes sterile whomever He wishes. Indeed, He is all-knowing, all-powerful.