Exodus 29:26-28

26“You shall take the abreast of the ram of Aaron’s bordination and cwave it for a wave offering before the Lord, and it shall be your portion. 27And you shall consecrate the dbreast of the wave offering that is waved and the ethigh of the priests’ portion that is contributed from the ram of fordination, from what was Aaron’s and his sons’. 28It shall be for Aaron and his sons as a gperpetual due from the people of Israel, for it is a hcontribution. It shall be a icontribution from the people of Israel from their peace offerings, their contribution to the Lord.

Leviticus 7:31-34

31 jThe priest shall burn the fat on the altar, but kthe breast shall be for Aaron and his sons. 32And lthe right thigh you shall give to the priest as a contribution from the sacrifice of your peace offerings. 33Whoever among the sons of Aaron offers the blood of the peace offerings and the fat shall have the right thigh for a portion. 34For the breast that is mwaved and the thigh that is ncontributed I have taken from the people of Israel, out of the sacrifices of their peace offerings, and ohave given them to Aaron the priest and to his sons, as a perpetual due from the people of Israel.
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