Leviticus 11:35-37

Amplified Bible

³⁵ Everything that part of their carcass falls on becomes unclean; an oven, or a small stove shall be smashed; they are unclean, and shall be unclean to you. ³⁶ Nevertheless a spring or a cistern (reservoir) collecting water shall be clean; but whoever touches one of these carcasses shall be unclean. ³⁷ If a part of their carcass falls on any seed for sowing which is to be sown, it is clean;