Deuteronomy 12:20-22

20When Yhwh thy God shall enlarge thy border, as he hath promised thee, and thou shalt say, I will eat flesh, because thy soul longeth to eat flesh; thou mayest eat flesh, whatsoever thy soul desires. 21If the place which Yhwh thy God hath chosen to put his name there be too far from thee, then thou shalt kill of thy herd and of thy flock, which Yhwh hath given thee, as I have commanded thee, and thou shalt eat in thy gates whatsoever thy soul desires. 22Even as the roebuck and the hart is eaten, so thou shalt eat them: the unclean and the clean shall eat of them alike.