出三藏記集 11.44

11.44

說戒者乃曰。僧和集會。未受大戒者出。僧何等作為（眾僧和聚會悉受無戒於僧有何事）答說戒（僧答言布薩）不來者囑授清淨說（諸人者當說當來之淨答言說淨）說已。那春夏冬若干日已過去。

The reciter of the precepts then says, 'The saṅgha is assembled in harmony. Those who have not received the full precepts, go out! What shall the saṅgha do?' (The assembly of monks gathers in harmony; having all received the precepts without transgression, what business does the saṅgha have?) The response is: 'Recite the precepts.' (The saṅgha responds, 'Poṣadha.') 'May those who have not come convey their purity.' (All persons should report the purity of those who are to come; the reply is, 'Report purity.') Having declared it, [he says], 'Of spring, summer, or winter, such-and-such number of days have already passed.'