Leviticus 5:10

7 “‘If he can’t afford a lamb, then he shall bring his trespass offering for that in which he has sinned, two turtledoves, or two young pigeons, to the LORD; one for a sin offering, and the other for a burnt offering.

8 He shall bring them to the priest, who shall first offer the one which is for the sin offering. He shall wring off its head from its neck, but shall not sever it completely.

9 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.

10 He shall offer the second for a burnt offering, according to the ordinance; and the priest shall make atonement for him concerning his sin which he has sinned, and he shall be forgiven.

11 “‘But if he can’t afford two turtledoves or two young pigeons, then he shall bring as his offering for that in which he has sinned, one tenth of an ephah of fine flour for a sin offering. He shall put no oil on it, and he shall not put any frankincense on it, for it is a sin offering.

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

13 The priest shall make atonement for him concerning his sin that he has sinned in any of these things, and he will be forgiven; and the rest shall be the priest’s, as the meal offering.’”