Leviticus 14:11-13

¹¹And the priest that cleanses shall present the man under purification, and these offerings before the Lord, at the door of the tabernacle of witness.

¹²And the priest shall take one lamb, and offer him for a trespass offering, and the cup of oil, and set them apart for a special offering before the Lord.

¹³And they shall kill the lamb in the place where they kill the whole burnt offerings, and the sin offerings, in the holy places; for it is a sin offering: as the trespass offering, it belongs to the priest, it is most holy.