Leviticus 14:19-22

19“The kohen shall offer the sin offering and make atonement for the one being cleansed because of his uncleanness. Afterward he is to slaughter the burnt offering.

20Then the kohen is to present the burnt offering along with the grain offering on the altar. So the kohen shall make atonement for him, and he will be clean.

21“If he is poor and cannot afford so much, then he shall take one male lamb for a trespass offering to be waved, to make atonement for him, plus one tenth of an ephah of fine flour mingled with oil for a grain offering, a pint of oil,

22two turtledoves or two young pigeons, such as he is able to afford. The one shall be a sin offering and the other a burnt offering.