Leviticus 7:29-32

29Speak unto the children of Israel, saying, He that offereth the sacrifice of his peace offerings unto Yhwh shall bring his oblation unto Yhwh of the sacrifice of his peace offerings.

30His own hands shall bring the offerings of Yhwh made by fire, the fat with the breast, it shall he bring, that the breast may be waved for a wave offering before Yhwh.

31And the priest shall burn the fat upon the altar: but the breast shall be Aaron’s and his sons’.

32And the right shoulder shall ye give unto the priest for an heave offering of the sacrifices of your peace offerings.