Leviticus 14:12-13

12The kohen shall then take one of the male lambs, and offer it for a trespass offering, with the pint of oil, and wave them as a wave offering before Adonai.

13“Then he is to slaughter the male lamb in the place where they slaughter the sin offering and the burnt offering, in the Sanctuary area. For the sin offering like the trespass offering belongs to the kohen. It is most holy.