נֹאֵ֣ף אִשָּׁ֣ה חֲסַר־לֵ֑ב מַֽשְׁחִ֥ית נַ֝פְשׁ֗וֹ ה֣וּא יַעֲשֶֽׂנָּה׃
He that committeth adultery with a woman lacketh understanding; He doeth it that would destroy his own soul.
Read halakhic rulings (Jewish law) on Proverbs 6:32: and classical halakhic sources.