The Fountain Of Faults

If you find fault in your brother or sister, the fault you see in them is within yourself.
The true Sufi is like a mirror where you see your own image, for “The believer is a mirror of their fellow believers.”
Get rid of those faults in yourself, because what bothers you in them bothers you in yourself.

An elephant was led to a well to drink. Seeing itself in the water, it shied away. It thought it was shying away from another elephant. It did not realize it was shying away from its own self. All evil qualities—oppression, hatred, envy, greed, mercilessness, pride—when they are within yourself, they bring no pain. When you see them in another, then you shy away and feel the pain.

Fihi Ma Fihi - Discourse 6