[If] someone authorized his agent to give his daughter in kiddushin, and he went and gave her in kiddushin —- if his was first, his kiddushin is valid; if that of his agent was first, his kiddushin is valid; if it is not known, they both give a get. If they desire, one may give a get and the other may marry [her].  Similarly, [if] a woman authorized an agent to accept her kiddushin, and she went and accepted her own kiddushin —- if hers was first, her kiddushin is valid; if her agent’s was first, his kiddushin is valid; if it is not known, they both give her a get. If they desire, one may give her a get and the other marry [her].

Someone who went overseas with his wife and then came with his wife and his children, and said that this is the woman who went overseas with him and these are her children need not bring proof concerning the woman nor concerning the children. [If he said:] “ She died and these are her children,” he must bring proof concerning the children, but he need not bring proof concerning the woman.