Leviticus 5:9-11 Modern English Version (MEV)
9 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 poured out at the base of the altar. It is a sin offering. 10 But the second he shall treat as a burnt offering according to the regulation. The priest shall make atonement for him for his sin that he committed, and he shall be forgiven.
11 But if he cannot afford to bring two turtledoves or two pigeons, he shall bring for his offering for the sin that he committed one-tenth of an ephah[a] of wheat flour for a sin offering. He shall not place olive oil on it, nor shall he put frankincense on it, for it is a sin offering.