Leviticus 5:12-13

12He shall bring it to the priest, and the priest shall take his handful of it as its memorial portion and offer it up in smoke on the altar, 1with the offerings of the Lord by fire: it is a sin offering. 13So the priest shall make atonement for him concerning his sin which he has 2committed from 3one of these, and it will be forgiven him; then 4the rest shall become the priest’s, like the grain offering.’”