Exodus 29:32-33

29:32 Aaron and his sons are to eat the meat of the ram and the bread that was in the basket at the entrance of the tent of meeting. 29:33 They are to eat those things by which atonement was made to consecrate and to set them apart, but no one else may eat them, for they are holy.

Leviticus 8:31

8:31 Then Moses said to Aaron and his sons, “Boil the meat at the entrance of the Meeting Tent, and there you are to eat it and the bread which is in the ordination offering basket, just as I have commanded, saying, ‘Aaron and his sons are to eat it,’

Leviticus 24:9

24:9 It will belong to Aaron and his sons, and they must eat it in a holy place because it is most holy to him, a perpetual allotted portion from the gifts of the Lord.”