Aniccasaññāsutta
Sāvatthinidānaṁ. “Aniccasaññā, bhikkhave, bhāvitā bahulīkatā sabbaṁ kāmarāgaṁ pariyādiyati, sabbaṁ rūparāgaṁ pariyādiyati, sabbaṁ bhavarāgaṁ pariyādiyati, sabbaṁ avijjaṁ pariyādiyati, sabbaṁ asmimānaṁ samūhanati.
The Perception of Impermanence
At Sāvatthī. “Mendicants, when the perception of impermanence is developed and cultivated it eliminates all desire for sensual pleasures, for rebirth in the realm of luminous form, and for rebirth in a future life. It eliminates all ignorance and eradicates all conceit ‘I am’.