四分戒本疏卷第一．第二．第三 3.54

3.54

若比丘與比丘尼在屏處坐者波逸提　此滿足戒本文有四句。一犯人。二尼。三處。四罪。初二兩句可知。三言屏處坐者。律云。屏有二種。一見屏。若塵若霧烟雲黑闇不明見。二聞屏處。乃至不聞常語聲。言坐者。一尼一僧無餘人。故名屏處坐。四言波逸提者。是違犯句。律云。比丘與尼屏露坐。無第三人為證故犯提。多論或比丘坐住尼起已便坐。隨坐多少一一得提。比丘起而更坐一一得罪。若二人俱坐一一正犯一罪。十云。屏坐相去一丈提。丈五吉。二丈不犯。祇云。共一尼屏坐。或尼請食已尼益食。益食去時一一提。比丘應起。不得默起。便尼疑應語言。我欲起。不爾尼起。若尼去者不犯。多論屏處者。無慚愧處。可作婬處。是名屏處。律云。證人若聾若盲不成證亦提。盲而不聾聾而不盲吉羅。若俱立住者吉羅。尼犯吉羅　問。尼所以輕者　答。上尊共坐。盡容教授去不自由情過是微故。所以輕。律云。不犯者。若比丘有伴。若有知人有二不盲不聾。若行過倒地。若病苦力勢所持。命梵等難。並開不犯。

“If a bhikṣu sits in a secluded place with a bhikṣuṇī: prāyaścittika.” This full Prātimokṣa text contains four clauses: first, the transgressor; second, the bhikṣuṇī; third, the place; fourth, the offense. The first two clauses are self-evident. As for the third, “sitting in a secluded place”: the Vinaya states that there are two kinds of seclusion. The first is visual seclusion, such as dust, fog, smoke, clouds, or pitch darkness where one cannot see clearly. The second is auditory seclusion, extending to not hearing the sound of ordinary speech. As for “sitting”: there is one bhikṣuṇī and one monk with no other person present; hence it is called sitting in a secluded place. As for the fourth, “prāyaścittika”: this is the clause determining the offense. The Vinaya states that if a bhikṣu and a bhikṣuṇī sit in a secluded or open place with no third person as a witness, they incur a prāyaścittika. The Sarvāstivāda-vinaya-vibhāṣā says that if the bhikṣu remains seated and the bhikṣuṇī gets up and sits down again, for as many times as she sits he incurs a prāyaścittika for each; if the bhikṣu gets up and sits down again, he incurs an offense for each; if both sit together, they formally commit an offense for each instance. The Sarvāstivāda Vinaya states that sitting in seclusion at a distance of ten feet incurs a prāyaścittika; at fifteen feet, a duṣkṛta; at twenty feet, no offense. The Mahāsāṃghika Vinaya states that if he sits in seclusion with one bhikṣuṇī, and after she invites him to eat she adds more food, each time she departs after adding food, he incurs a prāyaścittika. The bhikṣu should get up, but must not get up silently; lest the bhikṣuṇī become suspicious, he should say, “I wish to get up.” If not, the bhikṣuṇī should get up. If the bhikṣuṇī leaves, there is no offense. The Sarvāstivāda-vinaya-vibhāṣā says that a secluded place is a place devoid of shame, where sexual misconduct can be committed; this is called a secluded place. The Vinaya states that if the witness is deaf or blind, they do not qualify as a witness, and he still incurs a prāyaścittika. If blind but not deaf, or deaf but not blind, it is a duṣkṛta. If both remain standing, it is a duṣkṛta. The bhikṣuṇī incurs a duṣkṛta. Question: Why is it lighter for the bhikṣuṇī? Answer: Sitting together with a superior fully allows him to instruct her; she is not free to leave, so her subjective fault is slight, which is why it is lighter. The Vinaya states that for non-offenses: if the bhikṣu has a companion; if there are two discerning persons who are neither blind nor deaf; if walking by he falls to the ground; if he is incapacitated by illness or physical constraint; or in perils to life or celibacy—all are permitted and do not constitute an offense.