Saṁyutta Nikāya:
V. Mahā-Vagga
54. ĀnāpānaSaṁyutta
Kindred Sayings About
In-Breathing and Out-Breathing
Sutta 17
Saṁyojanam Suttaṁ
Fetter
THUS have I heard:
Once the Exalted One was staying near Sāvatthī at Jeta Grove, in Anāthapiṇḍika's Park.
Monks, intent concentration on in-breathing and out-breathing conduces to the abandoning of the fetters.