Exodus 22:19

"Whosoever lieth with a beast shall surely be put to death."

Cross References (ranked by relevance)

Neither shalt thou lie with any beast to defile thyself therewith: neither shall any woman stand before a beast to lie down thereto: it is confusion.

Cursed be he that lieth with any manner of beast. And all the people shall say, Amen.

And the land is defiled: therefore I do visit the iniquity thereof upon it, and the land itself vomiteth out her inhabitants.