Saṃyutta Nikāya 56
3. Koṭigāmavagga
25. Āsavakkhayasutta
“Jānatohaṃ, bhikkhave, passato āsavānaṃ khayaṃ vadāmi, no ajānato apassato. Kiñca, bhikkhave, jānato passato āsavānaṃ khayo hoti? ‘Idaṃ dukkhan’ti, bhikkhave, jānato passato āsavānaṃ khayo hoti, ‘ayaṃ dukkhasamudayo’ti jānato passato āsavānaṃ khayo hoti, ‘ayaṃ dukkhanirodho’ti jānato passato āsavānaṃ khayo hoti, ‘ayaṃ dukkhanirodhagāminī paṭipadā’ti jānato passato āsavānaṃ khayo hoti. Evaṃ kho, bhikkhave, jānato evaṃ passato āsavānaṃ khayo hoti.
Tasmātiha, bhikkhave, ‘idaṃ dukkhan’ti yogo karaṇīyo … pe … ‘ayaṃ dukkhanirodhagāminī paṭipadā’ti yogo karaṇīyo”ti.
Pañcamaṃ.