Please enjoy the following quote . . .
“Allah (subhana wa ta’ala) created everything in pairs. All existence has this principle instituted in it. Plants, animals, everything that has been created by Allah (subhana wa ta’ala) has been created in pairs. Allah (subhana wa ta’ala) establishes this in the Qur’aan by saying:
Glory be to the one Allah who created everything in pairs.
Also we realise that Allah (subhana wa ta’ala) in creating everything in pairs, has established this as a way of completing one half with another.”
Taken from The Woman’s Role in Building the Successful Household
by Sh. Saleem al Hilalee