Canonical Reference: Dhp 183 Verified Source

“To avoid all evil, to cultivate the good, and to purify one's own mind: this is the teaching of all the Buddhas.”

Canonical Pali Original: Sabbapāpassa akaraṇaṃ, kusalassa upasampadā; Sacittapariyodāpanaṃ, etaṃ buddhāna sāsanaṃ.

— Gautam Buddha
The Awakened One, Founder of Dhamma
Historical Setting & Context:

Core summary of the Buddhist path (Ovada Patimokkha), recorded in Dhammapada 183 and Digha Nikaya 14.