Leviticus 14:12-13

12Then the priest shall take one of the male lambs and offer it as a guilt offering, with the log of oil, and present them as a wave offering before the Lord.

13He shall kill the male lamb in the place where they kill the sin offering and the burnt offering, in the sacred place [the courtyard of the tabernacle]; for the guilt offering, like the sin offering, belongs to the priest; it is most holy.