Leviticus 11:34-36

New International Version

³⁴ Any food you are allowed to eat that has come into contact with water from any such pot is unclean, and any liquid that is drunk from such a pot is unclean. ³⁵ Anything that one of their carcasses falls on becomes unclean; an oven or cooking pot must be broken up. They are unclean, and you are to regard them as unclean. ³⁶ A spring, however, or a cistern for collecting water remains clean, but anyone who touches one of these carcasses is unclean.