律戒本疏 1.58

1.58

五為女人說法過五六語　迦留陀夷欲火熾盛。二篇之戒已制。不聽異。因言說散其煩結。好為女人說異處相。或向女說母。或向母說女。惡名流布。因斯而制。有知女人不得為說。說色無常是一句。及至識無常是五句。若說六入是六句。若不問而說不得過五。過五六語語犯墮。若說偈說品說經過者悉犯墮。恐因法起非法故。限以防之。若都不說恐生劣想故。宜少說令得敬信。若女人自問法得隨問答之。又得與受三歸五戒八戒。若唄呪願及嘆說施福無犯除。有知男子。謂白衣能知好惡者。有智女人亦如是。大比丘沙彌為伴不得說。說者突吉羅。四比丘為伴無犯也。

Fifth: Teaching the Dharma to a woman in more than five or six sentences.
Kālodayin had burning fires of lust. The precepts of the two sections having already been established, he was not permitted to act otherwise; relying on talk to disperse his vexations, he liked to describe physical features of different bodily parts to women, or speak to a daughter about her mother, or speak to a mother about her daughter. An evil reputation spread, and for this reason the precept was established. One must not speak to a woman who has understanding. Saying 'form is impermanent' is one sentence; up to 'consciousness is impermanent' makes five sentences. If one speaks of the six sense bases, that is six sentences. If speaking without being asked, one must not exceed five; exceeding five or six sentences, each sentence is an offense of pāyattika. If one recites a verse, a chapter, or a sutra exceeding this, it is entirely an offense of pāyattika. Fearing that non-Dharma might arise from the Dharma, a limit was made to guard against it. If one does not speak at all, fearing that an impression of inferiority might arise, one should speak a little to cause them to have reverence and faith. If a woman herself asks about the Dharma, one may answer according to her questions. Furthermore, one is permitted to confer the three refuges, the five precepts, and the eight precepts upon her. If chanting verses, offering blessings, or praising and explaining the merit of giving, there is no offense. An exception is made if there is a man with understanding, meaning a white-robed layperson capable of discerning good and bad; the same applies to a wise woman. With a senior monk or a novice as a companion, one may not speak; if one speaks, it is a duṣkṛta. With four monks as companions, there is no offense.