Vinaya Pitaka - Monastic Rules
Bhikkhu Vibhanga - Sekhiya 62: Not to teach the dhamma to someone who is wearing sandals 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) wearing sandals … " …
‘I will not teach dhamma to (someone) wearing sandals (and) who is not ill,’ is a training to be observed."
Dhamma should not be taught to (someone) wearing sandalss (and) who is not ill. Whoever out of disrespect teaches dhamma to (someone) mounted on (sandalss) or (with sandals) fastened on or (with sandals) unfastened (and) who is not ill, there is an offence of wrongdoing.
1 tena samayena buddho bhagavā sāvatthiyaṃ viharati jetavane anāthapiṇḍikassa ārāme. tena kho pana samayena chabbaggiyā bhikkhū upāhanāruḷhassa dhammaṃ desenti … pe … .
2 "na upāhanāruḷhassa agilānassa dhammaṃ desessāmīti sikkhā karaṇīyā"ti. (62:207)
3 na upāhanāruḷhassa agilānassa dhammo desetabbo. yo anādariyaṃ paṭicca akkantassa vā paṭimukkassa vā omukkassa vā agilānassa dhammaṃ deseti, āpatti dukkaṭassa.