四分律刪繁補闕行事鈔 2.130

2.130

五車界，六船界，並俱在陸地。律云：若車船迴轉處。此但明住車。《十誦》：行車者，前車向中車杖所及處，中車向前後車杖所及處，後車向中車杖所及處；若不及者，是名異界。《僧祇》：載船水中，有多住處；若自在往反，不會無犯；反上即犯。

Fifth, the cart boundary; sixth, the boat boundary; both are on dry land. The Vinaya states: 'The place where a cart or boat turns around.' This merely clarifies a stationary cart. The Daśādhyāya-vinaya: 'For moving carts, the reach of a staff from the front cart toward the middle cart, the reach of a staff from the middle cart toward the front and rear carts, and the reach of a staff from the rear cart toward the middle cart; if it does not reach, it is called a different boundary.' The Mahāsāṃghika-vinaya: 'When boats are loaded on water, there are many resting places; if one moves back and forth at will, not assembling incurs no offense; the opposite of this constitutes an offense.'