大比丘三千威儀 1.22

1.22

The thirty matters [of nihsargika-pāyattika] must all be repented; they require a full assembly of seven bhikṣus; if missing one person, one should not repent. If one repents on the very day of committing the fault, one should perform a three-day repentance. If one does not repent after three days have passed, one should perform a seven-day repentance. If one does not repent after seven days have passed, one should perform a fifteen-day repentance. If one does not repent after fifteen days have passed, one should perform a thirty-day repentance. If one does not repent after thirty days have passed, one must perform a ninety-day repentance.