Deuteronomy 24:7-9

7If a man be found stealing any of his brethren of the children of Israel, and maketh merchandise of him, or selleth him; then that thief shall die; and thou shalt put evil away from among you.

8Take heed in the plague of leprosy, that thou observe diligently, and do according to all that the priests the Levites shall teach you: as I commanded them, so ye shall observe to do. 9Remember what the Lord thy God did unto Miriam by the way, after that ye were come forth out of Egypt.