Leviticus 14:21-22

21“1But if he is poor and his 2means are insufficient, then he is to take one male lamb for a 3guilt offering as a wave offering to make atonement for him, and one-tenth of an 4ephah of fine flour mixed with oil for a grain offering, and a 56log of oil,

22and two turtledoves or two young pigeons which 7are within his means, 8the one shall be a 9sin offering and the other a burnt offering.