Leviticus 20:10
And the man that commits adultery with another man's wife, even he that commits adultery with his neighbor's wife, the adulterer and the adulteress shall surely be put to death.
Nave's Topical Index—AKJV

Deuteronomy 22:24
Then you shall bring them both out to the gate of that city, and you shall stone them with stones that they die; the damsel, because she cried not, being in the city; and the man, because he has humbled his neighbor's wife: so you shall put away evil from among you.
Nave's Topical Index—AKJV