Theravāda Vinaya
Mahāvibhaṅga
Sekhiyakaṇḍa
Khambhakatavagga
21. Khambhakatasikkhāpada
Tena samayena buddho bhagavā sāvatthiyaṃ viharati jetavane anāthapiṇḍikassa ārāme. Tena kho pana samayena chabbaggiyā bhikkhū khambhakatā antaraghare gacchanti … pe ….
“Na khambhakato antaraghare gamissāmīti sikkhā karaṇīyā”ti. (21:166)
Na khambhakatena antaraghare gantabbaṃ. Yo anādariyaṃ paṭicca ekato vā ubhato vā khambhaṃ katvā antaraghare gacchati, āpatti dukkaṭassa.