Exodus 29:26-28

“Then you shall take the breast of the ram of Aaron’s ordination, and wave it as a wave offering before the LORD; and it shall be your (Moses) portion. You shall consecrate the waved breast offering [of the ram] used in the ordination and the waved thigh offering of the priests’ portion, since it is [a contribution] for Aaron and for his sons. It shall be for Aaron and his sons as their due portion from the Israelites forever, for it is a heave offering. It shall be a heave offering to the LORD from the Israelites from the sacrifices of their peace offerings.