Leviticus 6:25-26

²⁵Speak unto Aaron and to his sons, saying, This is the law of the sin-offering: in the place where the burnt-offering is killed shall the sin-offering be killed before Jehovah: it is most holy.

²⁶The priest that offereth it for sin shall eat it: in a holy place shall it be eaten, in the court of the tent of meeting.