Leviticus 8:31-33

31And Moses said unto Aaron and to his sons, Boil the flesh at the door of the tent of meeting: and there eat it and the bread that is in the basket of consecration, as I commanded, saying, Aaron and his sons shall eat it. 32And that which remaineth of the flesh and of the bread shall ye burn with fire. 33And ye shall not go out from the door of the tent of meeting seven days, until the days of your consecration be fulfilled: for he shall consecrate you seven days.