Upanisinnavagga

Suttapiṭaka · Saṁyuttanikāya · Khandhavaggasaṁyutta · Vol. 17 · Section 401

[401] At Sāvatthī. The Blessed One said this to the Venerable Rādha, who was seated to one side: "Rādha, whatever is Māra — you should abandon desire (chanda) for it. And what, Rādha, is Māra? Form (rūpa), Rādha, is Māra; you should abandon desire for it. … Consciousness is Māra; you should abandon desire for it. Rādha, whatever is Māra — you should abandon desire for it."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 3 other places

Vol. 17 · Section 389 — Āyācanavagga
Vol. 17 · Section 390 — Māradhaṁmasutta
Vol. 17 · Section 416 — Nirodhdhaṁmasutta