He hath provided for you of cattle eight kinds. Quran 39:6
Islamic commentators suggest that this is clarified by 6:144-5, which says:
Eight pairs: Of the sheep twain, and of the goats twain. Say: Hath He forbidden the two males or the two females, or that which the wombs of the two females contain? Expound to me (the case) with knowledge, if ye are truthful. And of the camels twain and of the oxen twain.
