Musannaf Ibn Abi Shaybah 39066 — Placing a beam on a neighbour's wall

Sayyiduna Abdullah (may Allah be pleased with him) says: The Prophet (peace and blessings be upon him) went out to relieve himself, and he (peace and blessings be upon him) said: "Look for three stones for me." I brought him (peace and blessings be upon him) two stones and a piece of dung. He (peace and blessings be upon him) took the stones, threw away the dung and said: "This is impure." It is mentioned that the view of (Imam) Abu Hanifah is: If, after using three stones, impurity to the amount of a dirham remains, it will not suffice him without using water.