Leviticus 8:31-33

31And Moses said to Aaron and his sons, "Boil the flesh at the entrance of the tent of meeting, and there eat it and the bread that is in the basket of ordination offerings, as I commanded, saying, 'Aaron and his sons shall eat it.'

32And what remains of the flesh and the bread you shall burn up with fire.

33And you shall not go outside the entrance of the tent of meeting for seven days, until the days of your ordination are completed, for it will take seven days to ordain you.