LEVITICUS 14:20-21

²⁰and the priest shall offer the burnt offering and the meal offering upon the altar: and the priest shall make atonement for him, and he shall be clean.

²¹And if he be poor, and cannot get so much, then he shall take one he-lamb for a guilt offering to be waved, to make atonement for him, and one tenth part of an ephah of fine flour mingled with oil for a meal offering, and a log of oil;