sn.18.2 Saṁyutta Nikāya (Linked Discourses)

Sights, Etc.

At Sāvatthī.
“What do you think, Rāhula?
Are sights permanent or impermanent?”
“Impermanent, sir.” …
“… sounds …
smells …
tastes …
touches …
Are thoughts permanent or impermanent?”
“Impermanent, sir.” …
“Seeing this, a learned noble disciple grows disillusioned with sights, sounds, smells, tastes, touches, and thoughts.
Being disillusioned, desire fades away. …”