Related for Ketubot 43:12

The wife who said, "I am married", but came back and said, "I am not married" is believed, since the mouth that forbade is the mouth that permitted. If she said: "I was captured but I am pure [i.e. did not have sex with her captives], and I have witnesses that I am pure!", they don't say: "Let's wait until the witnesses come and permit her", but rather permit her [to return to her husband or subsequently marry a kohen] immediately. If, after they permitted her, witnesses came and said, "She was captured", then she cannot remarry. (The next section is not in good manuscripts). If [the witnesses said] "She was captured and is impure", even if she had children, she has to leave the marriage. If one witness says "She was captured and is impure", [or] one witness says "She was captured and is pure", [or] a woman says "She was captured and is impure", [or] a woman says "She was captured and is pure"—all of these she should not be remarried; but if she does remarry, she shouldn't leave the marriage.