Saṃyutta Nikāya - The Connected Discourses
Connected Discourses on Breathing: SN54:3 Simple Version
1 "Ānāpānassati, bhikkhave, bhāvitā bahulīkatā mahapphalā hoti mahānisaṃsā. Kathaṃ bhāvitā ca, bhikkhave, ānāpānassati kathaṃ bahulīkatā mahapphalā hoti mahānisaṃsā? Idha, bhikkhave, bhikkhu araññagato vā rukkhamūlagato vā suññāgāragato vā nisīdati pallankaṃ ābhujitvā ujuṃ kāyaṃ paṇidhāya parimukhaṃ satiṃ upaṭṭhapetvā. So satova assasati, satova passasati … pe … ‘paṭinissaggānupassī assasissāmī’ti sikkhati, ‘paṭinissaggānupassī passasissāmī’ti sikkhati. Evaṃ bhāvitā kho, bhikkhave, ānāpānassati evaṃ bahulīkatā mahapphalā hoti mahānisaṃsā"ti.
Tatiyaṃ.