Vinaya Pitaka - Monastic Rules
Bhikkhu Vibhanga - Sekhiya 50: Not to smack the lips while eating.
- Translated from the Pali by I.B. Horner.
… in Anāthapiṇḍika’s monastery. Now at that time the group of six monks ate smacking the lips … " …
‘I will not eat smacking the lips,’ is a training to be observed."
One should not eat smacking the lips … if he is the first wrong-doer.
The Fifth Division: that on the mouthful
1 tena samayena buddho bhagavā sāvatthiyaṃ viharati jetavane anāthapiṇḍikassa ārāme. tena kho pana samayena chabbaggiyā bhikkhū capucapukārakaṃ bhuñjanti … pe … .
2 "na capucapukārakaṃ bhuñjissāmīti sikkhā karaṇīyā"ti. (50:195)
3 na capucapukārakaṃ bhuñjitabbaṃ. yo anādariyaṃ paṭicca capucapukārakaṃ bhuñjati, āpatti dukkaṭassa.