PārājikkaṇḍaPaṭhaṁpārājikasikkhābada

Vinayapiṭaka · Bhikkhu Vibhaṅga (1) · Vol. 1 · Section 35

[35] "Even with a female animal (antamaso tiracchānagatāyapi)": having engaged in sexual intercourse (methunaṃ dhammaṃ) even with a female animal, one is not an ascetic (assamaṇo), not a son of the Sakyans (asakyaputtiyo) — how much more so, then, with a human female. Therefore it is said, "even with a female animal."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.