54. Ānāpāna Saɱyutta
1. Eka-Dhamma Vagga
Connected Discourses on Breathing
Book 1: One Thing
Translated from the Pali by Bhikkhu Bodhi
 "When, bhikkhus, mindfulness of breathing has been developed and cultivated in this way, one of two fruits may be expected: either final knowledge in this very life or, if there is a residue of clinging, the state of non-retuming."