Kimilasutta

sn54.10:6.1 Yasmiṁ samaye, ānanda, bhikkhu ‘pītippaṭisaṁvedī assasissāmī’ti sikkhati, ‘pītippaṭisaṁvedī passasissāmī’ti sikkhati;

sn54.10:6.2 ‘sukhappaṭisaṁvedī assasissāmī’ti sikkhati, ‘sukhappaṭisaṁvedī passasissāmī’ti sikkhati;

sn54.10:6.3 ‘cittasaṅkhārappaṭisaṁvedī assasissāmī’ti sikkhati, ‘cittasaṅkhārappaṭisaṁvedī passasissāmī’ti sikkhati;

sn54.10:6.4 ‘passambhayaṁ cittasaṅkhāraṁ passasissāmī’ti sikkhati—

sn54.10:6.5 vedanāsu vedanānupassī, ānanda, bhikkhu tasmiṁ samaye viharati ātāpī sampajāno satimā, vineyya loke abhijjhādomanassaṁ.

sn54.10:6.6 Taṁ kissa hetu?

sn54.10:6.7 Vedanāññatarāhaṁ, ānanda, etaṁ vadāmi, yadidaṁ—assāsapassāsānaṁ sādhukaṁ manasikāraṁ.

sn54.10:6.8 Tasmātihānanda, vedanāsu vedanānupassī bhikkhu tasmiṁ samaye viharati ātāpī sampajāno satimā, vineyya loke abhijjhādomanassaṁ.