Exodus 29:33-36

33 aThey shall eat those things with which atonement was made at their ordination and consecration, but an boutsider shall not eat of them, because they are holy. 34And if any of the flesh for the ordination or of the bread remain until the morning, then you shall cburn the remainder with fire. It shall not be eaten, because it is holy.

35Thus you shall do to Aaron and to his sons, according to all that I have commanded you. Through dseven days shall you ordain them, 36and every day you shall offer a ebull as a sin offering for atonement. Also you shall purify the altar, when you make atonement for it, and shall fanoint it to consecrate it.
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