Leviticus 14:21-22

And if he is poor and not able to get so much, then he may take one male lamb as an offering for wrongdoing, to be waved to take away his sin, and one tenth part of an ephah of the best meal mixed with oil for a meal offering, and a log of oil; And two doves or two young pigeons, such as he is able to get; and one will be for a sin-offering and the other for a burned offering.