Leviticus 6:24-26

Also the LORD spoke to Moses, saying, “Speak to Aaron and to his sons, saying, ‘This is the law of the sin offering: In the place where the burnt offering is killed, the sin offering shall be killed before the LORD. It is most holy. The priest who offers it for sin shall eat it. In a holy place it shall be eaten, in the court of the tabernacle of meeting.