٢٤٠. وَقَالَ (عليه السلام): الْحَجَرُ الْغَصِيبُ فِي الدَّارِ رَهْنٌ عَلَى خَرَابِهَا.
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.
Ill-gotten gains lead to ruin
Nahj al-Balāgha|Volume 1|Book 3|Chapter 240
قال السيد الرضى: و يروى هذا الكلام عن النبى (ص) و لا عجب أن يشتبه الكلامان لأن مستقاهما من قليب و مفرغهما من ذنوب .
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.