Theravāda Vinaya
Mahāvibhaṅga
Sekhiyakaṇḍa
Khambhakatavagga
25. Ukkuṭikasikkhāpada
Tena samayena buddho bhagavā sāvatthiyaṃ viharati jetavane anāthapiṇḍikassa ārāme. Tena kho pana samayena chabbaggiyā bhikkhū ukkuṭikāya antaraghare gacchanti … pe ….
“Na ukkuṭikāya antaraghare gamissāmīti sikkhā karaṇīyā”ti. (25:170)
Na ukkuṭikāya antaraghare gantabbaṃ. Yo anādariyaṃ paṭicca ukkuṭikāya antaraghare gacchati, āpatti dukkaṭassa.