Leviticus 5:11-13

¹¹‘But if his means are insufficient for two turtledoves or two young doves, then for his offering for that which he has sinned, he shall bring the tenth of an ephah of fine flour as a sin offering; he shall not put oil on it or place incense on it, for it is a sin offering. 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, with 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 committed from one of these, and it will be forgiven him; then the rest shall become the priest’s, like the grain offering.’ ”