Satipaṭṭhānasutta

Suttapiṭaka · Majjhimanikāya · Vol. 12 · Section 131

[131] Thus have I heard. On one occasion the Blessed One was dwelling among the Kurus, where there was a market town of the Kurus named Kammāsadhamma. There the Blessed One addressed the bhikkhus: "Bhikkhus." "Venerable sir," those bhikkhus replied to the Blessed One.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 14 · Section 80 — Āneñjasappāyasutta