Reference for Yevamot 220:2
תא שמע שני אחין פקחין נשואין שתי נכריות אחת פקחת ואחת חרשת מת פקח בעל החרשת מה יעשה פקח בעל פקחת כונס ואם רוצה להוציא יוציא מת פקח בעל פקחת מה יעשה פקח בעל חרשת או חולץ או מייבם
Come and hear: If two brothers of sound senses were married to two strangers<span class="x" onmousemove="('comment',' I.e., women who were not related to one another. ');"><sup>4</sup></span> one of whom was of sound senses and the other deaf, and [the brother who was] of sound senses, the husband of the deaf woman, died, what should the [brother who was] of sound senses, the husband of the woman who was of sound senses, do? He marries [the deaf widow], and if he wishes to divorce her he may do so.<span class="x" onmousemove="('comment',' V. supra n. 5. ');"><sup>5</sup></span> If [the brother who was] of sound senses, the husband of the woman who was of sound senses, died, what should the [brother who was] of sound senses, the husband of the woman who was deaf, do? He may either submit to <i>halizah</i> or contract levirate marriage.<span class="x" onmousemove="('comment',' Infra 112b. ');"><sup>6</sup></span>