四分律刪補隨機羯磨 1.642

1.642

「不得作不淨行，行婬欲法。若比丘尼，意樂作不淨行，行婬欲法，乃至共畜生，此非比丘尼，非釋種女。汝是中盡形壽不得犯，能持不？」

"You must not commit unchaste acts or engage in sexual intercourse. If a bhikṣuṇī, with lustful intent, commits an unchaste act or engages in sexual intercourse, even down to with an animal, she is no longer a bhikṣuṇī, no longer a daughter of the Śākyan clan. In this regard, you must not violate this for the rest of your life. Are you able to maintain it?"