Leviticus 7:30; Leviticus 7:34

30 His own hands shall bring the LORD's food offerings. He shall bring the fat with the breast, that the breast may be waved as a wave offering before the LORD.

34 For the breast that is waved and the thigh that is contributed I have taken from the people of Israel, out of the sacrifices of their peace offerings, and have given them to Aaron the priest and to his sons, as a perpetual due from the people of Israel.