Leviticus 14:29-31

Living Bible

²⁹ The remaining oil in his hand shall be placed upon the head of the man being cleansed, to make atonement for him before the Lord.

³⁰ “Then he must offer the two turtledoves or two young pigeons (whichever pair he is able to afford). ³¹ One of the pair is for a sin offering and the other for a burnt offering, to be sacrificed along with the grain offering; and the priest shall make atonement for the man before the Lord.”