[If] two brothers, one a deaf-mute and one competent, were married to two unrelated women, one a deaf-mute and one competent, and the deaf-mute 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 deaf-mute husband of the deaf-mute wife do? He should marry [her], and he can never divorce [her].

A woman who went with her husband overseas, [and] there was amity between him and her and peace in the world, and she came and said, “My husband died,” she may marry; [or, if she said,] “My husband died,” she may be taken in yibum. [If there was] amity between him and her but war in the world, [or if there was] a conflict between him and her and peace in the world, and she came and said, “My husband died,” she is not believed. R' Yehudah says: She is never believed unless she comes weeping and with her clothes torn. They said to him: In either case she may marry.