Imam Ali (AS) said, ‘The greatest fault is when one criticises others for the same faults present in oneself.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ): أكبَرُ (أكثرُ) العَيبِ أن تَعيبَ ما فيكَ مِثلُه.
Similar narrations
Ghurar al-Ḥikam #7471Imam Ali (AS) said, The greatest flaw is that you fault others for what is [also] in you.
Nahj al-Balāgha #2205353. Amīr al-mu’minīn, peace be upon him, said: The greatest defect is to regard that defect (in others) which is present in yourself. [1]