Paṭipadāsutta

Suttapiṭaka · Saṁyuttanikāya · Nidānavaggasaṁyutta · Vol. 16 · Section 19

[19] He was dwelling at Sāvatthī. … "Bhikkhus, I will teach you the wrong practice (micchāpaṭipadā) and the right practice (sammāpaṭipadā). Listen to that and attend to it well; I will speak." "Yes, 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English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.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 2 other places

Vol. 16 · Section 4 — Vibhaṅgasutta
Vol. 16 · Section 1 — Abhisamaysaṅyutta