The Tipiṭaka in Three Languages

Esanāsutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 307

[307] Bhikkhus, it is for the full understanding (pariññā) of these three searches (esanā) … this Noble Eightfold Path (ariya aṭṭhaṅgika magga) should be developed.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places