Aman whose wife went overseas, and they came and told him, “Your wife died,” and he married her sister, and afterward his wife reappeared —- she may return to him. He is permitted to [marry] the relatives of the second [woman], the second [woman] is permitted to [marry] his relatives, and, if the first [woman] dies, he is permitted to [marry] the second. [If] they told him, “Your wife died,” and he married her sister, and afterward they told him, “She was alive [then] but is now dead” —- the child [born] before is a mamzer, but not [the child born] after. R' Yose says: Anyone who disqualifies for others disqualifies for himself; anyone who does not disqualify for others does not disqualify for himself.