大比丘三千威儀 1.63

1.63

When a bhikṣu goes to the senior officials of a commandery or county, there are three matters for which he should go: first, on behalf of the affairs of the three masters; second, because someone is sick or has died and summons the bhikṣu to recite sūtras; third, because they invite the bhikṣu for a meal.