Leviticus 10:12-13

12Moses said to Aaron and to his two other sons Eleazar and Ithamar, ‘The grain offering is most holy. Take the part that you did not burn in front of the Lord. And make it into bread. Do not use yeast. Take it to the side of the altar and eat it.

13Eat it in a holy place. The Lord has said that it is your part of the grain offering. It is for you and for your sons.