Leviticus 20:10
10 `And a man who committeth adultery with a man's wife--who committeth adultery with the wife of his neighbour--the adulterer and the adulteress are surely put to death.
10 `And a man who committeth adultery with a man's wife--who committeth adultery with the wife of his neighbour--the adulterer and the adulteress are surely put to death.