尼羯磨 1.213

1.213

及界法（若往安居處欲安居，入界內便明相出，彼有疑，為成安居不？佛言：「若為安居故來，便成安居。」次入園亦同；次一脚入界、入園，亦如是。）

Procedure for Reaching the Sīmā (If one goes to the retreat place wishing to observe the retreat, and dawn breaks just as one enters the sīmā, and she has doubts about whether the retreat is established or not: the Buddha said, "If one came for the sake of the retreat, the retreat is established." Next, entering the park is the same; next, having one foot inside the sīmā or inside the park is also like this.)