وَمِن كُلِّ شَيۡءٍ خَلَقۡنَا زَوۡجَيۡنِ لَعَلَّكُمۡ تَذَكَّرُونَ

Wa min kulli shai'in khalaqnaa zawjaini la'allakum tazakkaroon

And of every thing We have created pairs: That ye may receive instruction.

— Adz-Dzariyah (ٱلذَّارِيَات), 51:49