四分戒本疏卷第一．第二．第三 3.38

3.38

若比丘若房若重閣上脫脚繩床木床若坐若臥波逸提　此滿足戒本文有四句。一犯人。二重屋。三脫脚床。四坐臥結犯。初句可知。二若房者。謂僧私兩種房。重閣者。謂立頭不至上。三言脫脚床者。律云。脫脚者謂脚入𭠷。四言若坐若臥。律云。隨脇著床隨轉側。言波逸提者。是違犯。故律云。比丘如上坐臥者。隨轉側一一犯提。除脫脚床外坐獨坐床。或一板床洛床一切吉羅。不犯者。律云。若重屋板覆剋木作花覆。若厚覆。若板床坐。若脫床脚坐若脚安細要。並不犯。

"If a bhikṣu, in a room or on an upper storey, sits or lies down on a rope bed or wooden bed with detachable legs, it is a prāyaścittika." / In this full text of the precept, there are four clauses: first, the person committing the offense; second, the upper storey; third, the bed with detachable legs; fourth, sitting or lying down, concluding the offense. / The first clause can be understood. / Second, "in a room": refers to both Saṅgha rooms and private rooms. "An upper storey": means a structure where standing upright does not reach the ceiling. / Third, "bed with detachable legs": the Vinaya states, "Detachable legs mean legs fitted into mortises." / Fourth, "sits or lies down": the Vinaya states, "As each side touches the bed and with each turning over." / "Prāyaścittika": this is an offense. / Hence the Vinaya states: "If a bhikṣu sits or lies down as above, with each turning over he incurs a prāyaścittika." Aside from beds with detachable legs, sitting on a single-seat bed, a single-plank bed, or a low bed are all duṣkṛtas. / Exceptions: The Vinaya states, "If the upper storey is covered with planks, covered with carved wood in floral patterns, or covered thickly; or if one sits on a plank bed; or if one removes the legs of the bed before sitting; or if the legs are secured with fine mortise pins—in all such cases, there is no offense."