尼羯磨 3.44

3.44

結說戒堂法（律言：不知當於何處說戒。佛言：「聽作說戒堂。」應一比丘尼具儀唱某大堂、閣上堂、經行堂、若河側、若樹下、若石側、若生草處已。應如是作。）

Procedure for demarcating a hall for the poṣadha (The vinaya states: It was not known where the poṣadha should be recited. The Buddha said: "I allow the establishment of a hall for the poṣadha." One bhikṣuṇī, with proper deportment, having announced a certain great hall, an upper-story hall, a walking-meditation hall, or a riverbank, or beneath a tree, or beside a boulder, or in a grassy place, should then perform it in this way:)