Дварим 21:13 Галаха: Mishneh Torah, Kings and Wars

What are the details of the Jewish Law of the Woman of Beauty? (Even) after he has had the first intercourse with her, she still remains a non-Jewess. Now, if she accepts upon herself the Wings of the Shechinoh (Holy Presence)⁷³I.e., she converts., she immediately⁷⁴And she need not grow her fingernails long nor shave her head. immerses in a Mikveh for purposes of conversion. If she does not wish to do accept this, she sits in his house for thirty days, as it says, “and she cries for her father and mother, for a month of days” (Deut. 21:13). He does not prevent her from weeping for her religion⁷⁵Which she can no longer practice.. She grows her fingernails long and shaves her head so that she will appear despicable in his eyes. She is to remain in the house with him. When he comes in, he sees her, and when he leaves, he sees her. This is done so that he will come to loathe her. He discusses matters with her in order to induce her to convert for thirty days. If she accepts and he still wants her, she converts and immerses, as do all converts.