Leviticus 14:20-22

New Revised Standard Version, Anglicised Catholic Edition

²⁰ and the priest shall offer the burnt-offering and the grain-offering on the altar. Thus the priest shall make atonement on his behalf and he shall be clean.

²¹ But if he is poor and cannot afford so much, he shall take one male lamb for a guilt-offering to be elevated, to make atonement on his behalf, and one-tenth of an ephah of choice flour mixed with oil for a grain-offering, and a log^[a] of oil; ²² also two turtle-doves or two pigeons, such as he can afford, one for a sin-offering and the other for a burnt-offering.