Ill-gotten gains lead to ruin

240. Amīr al-mu’minīn, peace be upon him, said: One ill-gotten piece of stone in a house is a guarantee for its ruin.

as-Sayyid ar-Raḍī says: In one tradition this saying is attributed to the Prophet. It is no wonder that the two sayings should resemble each other because they are driven from the same source and dispersed through the same means.