Leviticus 7:21-25

²¹And when any one shall touch any unclean thing, whether it be the uncleanness of man, or an unclean beast, or any unclean detestable thing, and eat of the flesh of the sacrifice of peace-offerings, which pertain unto the LORD, that soul shall be cut off from his people.

²²And the LORD spoke unto Moses, saying:

²³Speak unto the children of Israel, saying: Ye shall eat no fat, of ox, or sheep, or goat.

²⁴And the fat of that which dieth of itself, and the fat of that which is torn of beasts, may be used for any other service; but ye shall in no wise eat of it.

²⁵For whosoever eateth the fat of the beast, of which men present an offering made by fire unto the LORD, even the soul that eateth it shall be cut off from his people.