Khandha sutta: The Aggregates

At Sāvatthī.

“What do you think, Rāhula? Is form permanent or impermanent?”

“Impermanent, sir.” …

“… feeling … perception … choices … Is consciousness permanent or impermanent?”

“Impermanent, sir.” …

“Seeing this, a learned noble disciple grows disillusioned with form, feeling, perception, choices, and consciousness. Being disillusioned, desire fades away. When desire fades away they’re freed. When they’re freed, they know they’re freed.

They understand: ‘Rebirth is ended, the spiritual journey has been completed, what had to be done has been done, there is nothing further for this place.’”