“Do not focus on the faults of others, nor on what they have done or left undone. Rather, inspect your own conduct and examine what you yourself have done and left undone.”
Canonical Pali Original: Na paresaṃ vilomāni, na paresaṃ katākataṃ; Attanova avekkheyya, katāni akatāni ca.
— Gautam Buddha
The Awakened One, Founder of Dhamma
Pali Canon: Dhammapada 4.50 emphasizing self-reflection and personal accountability over judgment of others.