Leviticus 5:11-13

11But if he shall not be able to bring two turtledoves, or two young pigeons, then he that sinned shall bring for his offering the tenth part of an ephah of fine flour for a sin offering; he shall put no oil upon it, neither shall he put any frankincense on it: for it is a sin offering. 12Then shall he bring it to the priest, and the priest shall take his handful of it, even a memorial of it, and burn it on the altar, according to the offerings made by fire to the LORD: it is a sin offering. 13And the priest shall make an atonement for him as concerning his sin that he hath sinned in one of these, and it shall be forgiven him: and the remnant shall be the priest’s, as a meat offering.