Leviticus 5:6, 9, 12

and he shall bring his trespass offering to the LORD for his sin which he has committed, a female from the flock, a lamb or a kid of the goats as a sin offering. So the priest shall make atonement for him concerning his sin.

Then he shall sprinkle some of the blood of the sin offering on the side of the altar, and the rest of the blood shall be drained out at the base of the altar. It is a sin offering.

Then 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.