הלכה על מכות 37:5

He prohibited one who puts out a bad name [upon his wife] from divorcing [her]. And that is His saying, "he shall not be able to send her away all of his days" (Deuteronomy 22:19). And this negative commandment was also preceded by a positive commandment; and that is His saying, "and to him shall she be as a wife." And the law for him with divorce, concerning lashes, is the same as the law for the rapist, as has been explained at the end of Makkot and in the third and fourth [chapters] of Ketuvot. (See Parashat Ki Tetzeh; Mishneh Torah, Virgin Maiden 3.)