佛制比丘六物圖 1.74

1.74

井界十五。（《僧祇》：「道行露地，井邊宿，二十五肘。」亦四丈五尺內為界。衣在井中，應繩連垂手入井，不失，與上界別故。餘坑窨亦然。）

15. The well boundary. (The Mahāsāṃghika-vinaya states: "Traveling on the road in the open, spending the night beside a well: twenty-five hastas," also taking within four zhang, five chi as the boundary. If the robe is inside the well, one should attach a rope and lower a hand into the well; it is not forfeited, because it is distinct from the boundary above. Other pits and cellars are likewise.)