Leviticus 8:31-33

31Then Moses said to Aaron and his sons, “Boil the meat at the entrance of the Meeting Tent, and there you are to eat it and the bread which is in the ordination offering basket, just as I have commanded, saying, ‘Aaron and his sons are to eat it,’

32but the remainder of the meat and the bread you must burn with fire.

33And you must not go out from the entrance of the Meeting Tent for seven days, until the day when your days of ordination are completed, because you must be ordained over a seven-day period.