Leviticus 6:22-26

The anointed priest who will be in his place among his sons shall offer it. By a permanent ordinance it shall be entirely offered up in smoke to the Lord.

So every grain offering of the priest shall be burned entirely. It shall not be eaten.”

Then the Lord spoke to Moses, saying,

“Speak to Aaron and to his sons, saying, ‘This is the law of the sin offering: in the place where the burnt offering is slaughtered, the sin offering shall be slaughtered before the Lord; it is most holy.

The priest who offers it for sin shall eat it. It shall be eaten in a holy place, in the courtyard of the tent of meeting.