Vinaya Pitaka - Monastic Rules
Bhikkhu Vibhanga - Sekhiya 59: Not to teach the dhamma to someone holding a knife unless they are ill.
- Translated from the Pali by I.B. Horner.
… in Anāthapiṇḍika’s monastery. Now at that time the group of six monks taught dhamma to (someone) with a knife in his hand … " …
‘I will not teach dhamma to (someone) who has a knife in his hand (and) who is not ill,’ is a training to be observed."
Knife means: a weapon, single-edged, double-edged. Dhamma should not be taught to (someone) who has a knife in his hand (and) who is not ill … if he is the first wrong-doer.
1 tena samayena buddho bhagavā sāvatthiyaṃ viharati jetavane anāthapiṇḍikassa ārāme. tena kho pana samayena chabbaggiyā bhikkhū satthapāṇissa dhammaṃ desenti … pe … .
2 "na satthapāṇissa agilānassa dhammaṃ desessāmīti sikkhā karaṇīyā"ti. (59:204)
3 satthaṃ nāma ekatodhāraṃ ubhatodhāraṃ paharaṇaṃ.
4 na satthapāṇissa agilānassa dhammo desetabbo. yo anādariyaṃ paṭicca satthapāṇissa agilānassa dhammaṃ deseti, āpatti dukkaṭassa.