五分比丘尼戒本 1.9

1.9

「若比丘尼，共諸比丘尼同學戒法，戒羸不捨，隨意行婬乃至共畜生，是比丘尼得波羅夷不共住。

"Whatever bhikṣuṇī, who trains in the rules of śīla together with the bhikṣuṇīs, fails to give up the training when the śīla is weak, and engages in sexual intercourse as she pleases, even with an animal, that bhikṣuṇī incurs a pārājika and is in non-communion.