Mahanidanasutta 29.10

29.10

Iti so diṭṭheva dhamme aniccasukhadukkhavokiṇṇaṃ uppādavayadhammaṃ attānaṃ samanupassamāno samanupassati, yo so evamāha: ‘vedanā me attā’ti.

So those who say ‘feeling is my self’ regard as self that which is evidently impermanent, mixed with pleasure and pain, and liable to rise and fall.