At Sāvatthī.

“What do you think, Rāhula? Is intention regarding sights permanent or impermanent?”

“Impermanent, sir.” …

“… intention regarding sounds … intention regarding smells … intention regarding tastes … intention regarding touches … Is intention regarding ideas permanent or impermanent?”

“Impermanent, sir.” …

“Seeing this, a learned noble disciple grows disillusioned with intention regarding sights, sounds, smells, tastes, touches, and ideas. …”