sn.23.14 Saṁyutta Nikāya (Linked Discourses)
Naturally Impermanent
At Sāvatthī.Seated to one side, Venerable Rādha said to the Buddha:
“Sir, they speak of this thing called ‘naturally impermanent’.
What is naturally impermanent?
“Rādha, form, feeling, perception, choices, and consciousness are naturally impermanent.
Seeing this …
They understand: ‘… there is no return to any state of existence.’”