Leviticus 5:9-11

Revised Standard Version

⁹ and he shall sprinkle some of the blood of the sin offering on the side of the altar, while the rest of the blood shall be drained out at the base of the altar; it is a sin offering. ¹⁰ Then he shall offer the second for a burnt offering according to the ordinance; and the priest shall make atonement for him for the sin which he has committed, and he shall be forgiven.

¹¹ “But if he cannot afford two turtledoves or two young pigeons, then he shall bring, as his offering for the sin which he has committed, a tenth of an ephah of fine flour for a sin offering; he shall put no oil upon it, and shall put no frankincense on it, for it is a sin offering.