Padīpopamasutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 1333

[1333] Therefore, bhikkhus, if a bhikkhu should wish: "May I dwell perceiving the unrepulsive in the repulsive," then this very concentration (samādhi) of mindfulness of breathing (ānāpānasati) should be carefully attended to.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.