[If] two competent brothers were married to two unrelated women, one competent and one a deaf-mute, and the competent husband of the deaf-mute [wife] died, what should the competent husband of the competent [wife] do? He should marry [her]. [If] he [then] wishes to divorce [her], he may. [If] the competent husband of the competent [wife] died, what should the competent husband of the deaf-mute [wife] do? He [may] perform either chalitzah or yibum.