Theravāda Vinaya
Mahāvibhaṅga
Sekhiyakaṇḍa
Ujjagghikavagga
Sekhiyā 11: Ujjagghikasikkhāpada
Tena samayena buddho bhagavā sāvatthiyaṃ viharati jetavane anāthapiṇḍikassa ārāme. Tena kho pana samayena chabbaggiyā bhikkhū mahāhasitaṃ hasantā antaraghare gacchanti … pe ….
“Na ujjagghikāya antaraghare gamissāmīti sikkhā karaṇīyā”ti. (11:156)
Na ujjagghikāya antaraghare gantabbaṃ. Yo anādariyaṃ paṭicca mahāhasitaṃ hasanto antaraghare gacchati, āpatti dukkaṭassa.
Anāpatti—asañcicca, assatiyā, ajānantassa, gilānassa, hasanīyasmiṃ vatthusmiṃ mihitamattaṃ karoti, āpadāsu, ummattakassa, ādikammikassāti.