Vedanāsutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 85

[85] Bhikkhus, the Noble Eightfold Path (ariyo aṭṭhaṅgiko maggo) is to be developed for the full understanding (pariññā) of these three feelings (vedanā). And what is the Noble Eightfold Path? It is this: right view … right concentration (samādhi). Bhikkhus, the Noble Eightfold Path is to be developed for the full understanding of these three feelings.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 19 · Section 307 — Esanāsutta