四分律行事鈔資持記 2.1236

2.1236

初緣，《多論》四意，上三利他，四即相利。彼又云：若不開往，便謗云：比丘有求不喚自來，無求時雖喚不來；若往說法令悟道果，故開往也。律不犯者。第三宿明相未出離見聞處，水陸道斷命梵等不往，皆開。

First condition: in the Sarvāstivāda Vinaya Vibhāṣā there are four intentions; the upper three benefit others, and the fourth is mutual benefit. It also says: If going were not allowed, they would slander: "The bhikṣu comes uncalled when he has something to seek, but when he has nothing to seek, he does not come even when called"; if he goes to expound the Dharma, he leads them to awaken to the path and fruits, so going is permitted. As for "no violation" in the Vinaya: on the third night before the dawn-mark appears, leaving the place of sight and hearing, or not going due to roads being cut off by water or land, or danger to life or celibacy, etc., are all exceptions.