Cetanāsutta

Suttapiṭaka · Saṁyuttanikāya · Nidānavaggasaṁyutta · Vol. 16 · Section 612

[612] At Sāvatthī he was dwelling … "What do you think, Rāhula: is volition regarding forms (rūpasañcetanā) permanent or impermanent?" "Impermanent, venerable sir." … Volition regarding sounds … volition regarding odours … volition regarding tastes … volition regarding tangibles … "Is volition regarding dhammas permanent or impermanent?" "Impermanent, venerable sir." …

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places

Vol. 16 · Section 628 — Sañcetanāsutta
Vol. 16 · Section 627 — Saññāsutta
Vol. 16 · Section 626 — Vedanāsutta
Vol. 16 · Section 623 — Rūpasutta
Vol. 16 · Section 624 — Viññāṇasutta