[108] "Where was the offense entailing expiation (pācittiya) laid down for one who sits down in private with a woman (mātugāma), one man alone with one woman alone?" — "It was laid down at Sāvatthī." — "Concerning whom?" — "Concerning the Venerable Upananda the Sakyan son." — "On account of what matter?" — "On the matter that the Venerable Upananda the Sakyan son sat down in private with a woman, one man alone with one woman alone."
There is one laying down of the rule (paññatti). Of the six origins of offenses (āpattisamuṭṭhāna), it originates through one origin: it originates from body and from mind (citta), not from speech. …
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.