Leviticus 8:31-33

31And Moses said to Aaron and his sons, “Boil the meat at the entrance to the Tent of Meeting and eat it there with the bread that is in the basket of ordination offerings, as I commanded, saying, ‘Aaron and his sons are to eat it.’ 32Then you must burn up the remainder of the meat and bread.

33You must not go outside the entrance to the Tent of Meeting for seven days, until the days of your ordination are complete; for it will take seven days to ordain you.