佛制比丘六物圖 1.74

1.74

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.)