Dharmaguptaka-vinaya 15.49

15.49

若比丘先受請已，前食後食詣餘家，不囑授比丘入村間，除餘時，波逸提。若一脚在門內、一脚在門外，方便莊嚴欲去而不去者，一切突吉羅。

If a bhikṣu, having previously accepted an invitation, should either before or after a meal visit another family, entering a village without giving notification to a bhikṣu, except at the proper time, it is a pāyattika. If one foot is inside the gate and one foot outside the gate, or if having made preparation and wishing to go he does not go, it is in all cases a duṣkṛta.