Exodus 29:34-36

Amplified Bible

³⁴ And if any of the meat of ordination or the bread remains until morning, you shall burn it in the fire; it shall not be eaten, because it is holy.

³⁵ “So you shall do to Aaron and to his sons in accordance with all I have commanded you; during seven days you are to ordain them. ³⁶ You shall offer a bull every day as a sin offering for atonement. You shall cleanse the altar from sin when you make atonement for it, and you shall anoint it to consecrate it [for God’s sacred purpose].