Kālattayaaniccasuttaṃ [SN 22.9, PTS 3.19]

9.

The Discourse on Impermanence in the Three Times

9. At Sāvatthī. "Materiality, monks, is impermanent, whether past or future; what then to say of the present! Seeing thus, monks, a learned noble disciple is without longing for past materiality; he does not delight in future materiality; he is practising for disenchantment, dispassion, and cessation of present materiality. Feeling is impermanent, etc. Perception is impermanent, activities are impermanent, whether past or future; what then to say of the present! Seeing thus, monks, a learned noble disciple is without longing for past activities; he does not delight in future activities; he is practising for disenchantment, dispassion, and cessation of present activities. Consciousness is impermanent, whether past or future; what then to say of the present! Seeing thus, monks, a learned noble disciple is without longing for past consciousness; he does not delight in future consciousness; he is practising for disenchantment, dispassion, and cessation of present consciousness." The ninth.