Leviticus 5:12-13

12Then he shall bring it to the priest, and the priest shall take his handful of it as a memorial portion, and burn it on the altar according to the offerings made by fire to the Lord. It is a sin offering.

13The priest shall make atonement for him, for his sin that he has committed in any of these matters; and it shall be forgiven him. The rest shall be the priest’s as a grain offering.’ ”