Leviticus 20:10

20:10 "'The man who commits adultery with another man's wife, even he who commits adultery with his neighbor's wife, the adulterer and the adulteress shall surely be put to death.
-World English Bible

Other Translation

20:10 And the man that committeth adultery with [another] man's wife, [even he] that committeth adultery with his neighbour's wife, the adulterer and the adulteress shall surely be put to death.
-King James Version