The Tipiṭaka in Three Languages

Paṭhamasāmaññasutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 100

[100] And what, bhikkhus, is the ascetic life (sāmañña)? It is just this Noble Eightfold Path; that is: right view … right concentration (samādhi). This, bhikkhus, is called the ascetic life.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 2 other places