"O mankind! We
created you from a single (pair) of a male and a female, and made
you into nations and tribes, that ye may know each other (not that
ye may despise (each other). Verily the most honoured of you in the
sight of Allah is (he who is) the most righteous of you. And Allah
has full knowledge and is well acquainted (with all things)." [Al-Qur'an
49:13]