Hazrat Hasan al-Basri once fell sick. His neighbour, an unbeliever, came to pay him a visit. "O Imam," he exclaimed, "I detect a bad smell." The Imam told him it was caused by illness, but the neighbour insisted: "That is not the odor of sickness. It is a lavatory smell.
For the love of Allah, tell me what it is!"
He had not noticed that sewage was leaking from his house into that of the Imam.
When the neighbour pressed him, the Imam…