四分律刪繁補闕行事鈔 2.205

2.205

與尼同船戒二十八。四緣：一是尼，二共期，三同乘上下，四入船，犯。律中，除直度，船師失濟上下水者，不犯。

Precept twenty-eight: boarding a boat together with a bhikṣuṇī. There are four conditions: first, she is a bhikṣuṇī; second, an agreed appointment; third, boarding together to travel up or down stream; fourth, transgressing upon entering the boat. In the Vinaya, aside from crossing straight over, or if the boatman misses the ferry and travels up or down stream, there is no offense.