Leviticus 10:12-13

Moses said to Aaron and his remaining sons, Eleazar and Ithamar, “Eat the part of the grain offering that is left from the sacrifices offered by fire to the LORD, but do not add yeast to it. Eat it near the altar because it is most holy. You must eat it in a holy place, because this part of the offerings made by fire to the LORD belongs to you and your sons. I have been commanded to tell you this.