Gittin 90B

ופרומה משני צדדיה, ורוחצת עם בני אדם.

and with her garment open from both sides, and bathing with men, and ignores it.

״עם בני אדם״ סלקא דעתך?! אלא במקום שבני אדם רוחצין.

The Talmud asks: Can it enter your mind that the baraita is referring to a wife who bathes with men? Even a man of the lowest moral character would not allow his wife to act in this manner. Rather, the baraita means that she bathes in a place where men often bathe.

זו ⁠– מצוה מן התורה לגרשה, שנאמר: ״כי מצא בה ערות וגו׳ ושלחה מביתו״. ״והלכה והיתה לאיש אחר״⁠ – הכתוב קראו ״אחר״, לומר: שאין זה בן זוגו לראשון ⁠– זה הוציא רשעה מביתו, וזה הכניס רשעה לתוך ביתו.

The baraita continues: With regard to this kind of wife, it is a mitzva by Torah law to divorce her, as it is stated: “Because he has found some unseemly matter in her, and he writes her a scroll of severance, and gives it in her hand, and he sends her out of his house…And she goes and becomes another [aḥer] man’s wife” (Deuteronomy 24:1–2). The verse called the second husband aḥer, other, to state that this man is not a peer of the first husband. They are morally distinct, as that first husband evicted a wicked woman from his house and this second man introduced a wicked woman into his house.

זכה שני ⁠– שלחה, שנאמר: ״ושנאה האיש האחרון״. ואם לאו ⁠– קוברתו, שנאמר: ״או כי ימות האיש האחרון״⁠ – כדאי הוא במיתה; שזה הוציא רשעה מביתו, וזה הכניס רשעה לתוך ביתו.

If the second man merits, he will send her out, as it is stated in the following verse: “And the latter husband hates her…and he sends her out of his house” (Deuteronomy 24:3). And if not, she will bury him, as it is stated in the same verse: “Or if the latter husband dies.” It is appropriate for him to receive the punishment of death, as that first man evicted a wicked woman from his house and this second husband introduced a wicked woman into his house.