四分律刪繁補闕行事鈔 1.477

1.477

次明一人已上別法。律云：若獨住者，詣說戒堂，掃治具調度，待客比丘來。若四人已上，白說戒。若三人，各各修儀，更互說云：「二大德一心念！今僧十五日說戒，我某甲清淨（三說）！」若二人相向，彼此如上三說。若一人，心念口言：「今僧十五日說戒，我某甲清淨（三說）！」若獨行山野，聚落無人，亦同此法。若有罪者，不應淨法，小罪責心已便說；若有重吉羅已上，有疑及識，或云發露，或云待人，律無明斷。今準通解，云須發露，云：「今日眾僧說戒，我犯某罪，不應說戒布薩（三說）。」《五百問》云：一比丘住處有界，至布薩日，先向四方僧懺悔，三說已，獨坐廣誦戒本。

Next, explaining the distinct procedures for one person and above. The Vinaya states: If one dwells alone, one goes to the upoṣadha recitation hall, sweeps and cleans, sets out the utensils, and awaits the arrival of guest bhikṣus. If there are four persons or more, they recite the precepts through a motion (jñapti). If there are three persons, each cultivates proper deportment and they speak to one another in turn, saying: "May the two venerable ones single-mindedly pay heed! Today is the Saṃgha's fifteenth-day upoṣadha recitation; I, so-and-so, am pure (three times)!" If there are two persons facing each other, each speaks to the other three times as above. If there is one person, he thinks in mind and speaks with the mouth: "Today is the Saṃgha's fifteenth-day upoṣadha recitation; I, so-and-so, am pure (three times)!" If one travels alone in the mountains or wilds, or in a settlement without people, the procedure is also the same as this. If there is an offense, one must not practice the purification procedure; after self-reproach for minor offenses, one then recites; if there is a grave duṣkṛta or above, whether with doubt or clear knowledge, some say one discloses it, while others say one waits for another person, as the Vinaya has no explicit determination. Now, according to the general interpretation, it is said that one must disclose it, saying: "Today the great Saṃgha performs the upoṣadha recitation; I have committed such-and-such an offense and should not perform the upoṣadha recitation of the precepts (three times)." The Five Hundred Questions states: If a single bhikṣu's dwelling place has a boundary, when the upoṣadha day arrives, he first repents toward the cāturdiśa-saṃgha, and having spoken three times, sits alone and extensively recites the Prātimokṣa.