[748] Then, Bhāradvāja, this occurred to me: 'Why should I not practice the breathless absorption (appāṇaka jhāna)?' So, Bhāradvāja, I stopped the in-breaths and out-breaths through my mouth, my nose, and my ear canals. When the in-breaths and out-breaths were stopped through my mouth, my nose, and my ear canals, exceedingly violent winds carved through my belly. Just as, Bhāradvāja, a skilled cattle-butcher or a cattle-butcher's apprentice might carve through a belly with a sharp butcher's knife, even so, Bhāradvāja, when the in-breaths and out-breaths were stopped through my mouth, my nose, and my ear canals, exceedingly violent winds carved through my belly. And though my energy (vīriya) was aroused and unflagging, Bhāradvāja, and my mindfulness (sati) established and unconfused, yet my body was strained and not tranquil, for I was overwhelmed by that very painful striving.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.