[854] Setting at Sāvatthī (Sāvatthīnidānaṃ). Now at that time the group-of-six bhikkhus (chabbaggiyā bhikkhū) ate licking their lips. … "I will not eat licking my lips": thus the training (sikkhā) is to be undertaken.
One should not eat licking the lips. Whatever bhikkhu, out of disrespect (anādariya), eats licking his lips, incurs an offence of wrong-doing (dukkaṭa).
There is no offence: if it is unintentional; if he is unmindful; if he does not know; if he is ill; in emergencies; if he is mad; if he is the first offender.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.