وَمِن كُلِّ شَيۡءٍ خَلَقۡنَازَوۡجَيۡنِ لَعَلَّكُمۡتَذَكَّرُونَ

And of all things We created two mates; perhaps you will remember.
Surah Adh-Dariyat Ayat 49