05 Ketubot 2/5-7

(ה) הָאִשָּׁה שֶׁאָמְרָה אֵשֶׁת אִישׁ הָיִיתִי וּגְרוּשָׁה אָנִי, נֶאֱמֶנֶת, שֶׁהַפֶּה שֶׁאָסַר הוּא הַפֶּה שֶׁהִתִּיר. וְאִם יֵשׁ עֵדִים שֶׁהָיְתָה אֵשֶׁת אִישׁ וְהִיא אוֹמֶרֶת גְּרוּשָׁה אָנִי, אֵינָהּ נֶאֱמֶנֶת. אָמְרָה נִשְׁבֵּיתִי וּטְהוֹרָה אָנִי, נֶאֱמֶנֶת, שֶׁהַפֶּה שֶׁאָסַר הוּא הַפֶּה שֶׁהִתִּיר. וְאִם יֵשׁ עֵדִים שֶׁנִּשְׁבֵּית וְהִיא אוֹמֶרֶת טְהוֹרָה אָנִי, אֵינָהּ נֶאֱמֶנֶת. וְאִם מִשֶּׁנִּשֵּׂאת בָּאוּ עֵדִים, הֲרֵי זוֹ לֹא תֵצֵא:

(ו) שְׁתֵּי נָשִׁים שֶׁנִּשְׁבּוּ, זֹאת אוֹמֶרֶת נִשְׁבֵּיתִי וּטְהוֹרָה אָנִי, וְזֹאת אוֹמֶרֶת נִשְׁבֵּיתִי וּטְהוֹרָה אָנִי, אֵינָן נֶאֱמָנוֹת. וּבִזְמַן שֶׁהֵן מְעִידוֹת זוֹ אֶת זוֹ, הֲרֵי אֵלּוּ נֶאֱמָנוֹת:

(ז) וְכֵן שְׁנֵי אֲנָשִׁים, זֶה אוֹמֵר כֹּהֵן אָנִי וְזֶה אוֹמֵר כֹּהֵן אָנִי, אֵינָן נֶאֱמָנִין. וּבִזְמַן שֶׁהֵן מְעִידִין זֶה אֶת זֶה, הֲרֵי אֵלּוּ נֶאֱמָנִין:

(5) A woman, who said, "I was a married woman, and I am [now] divorced," is believed, because the [same] mouth which prohibited [her to other men by saying she was married, also] permitted [her to marry other men]. But if there are witnesses that she had been a married woman, even though she says, "I am divorced," she is not believed. If she says, "I was captured [by gentiles], but am undefiled," she is believed, because the [same] mouth which prohibited [her also] permitted [her]. But if there are witnesses that she was captured, and she says, "I am undefiled," she is not believed. And if witnesses come after she was married [to a kohen], she need not get divorced.

(6) [With regard to] two women who were captured, this one says, "I was captured, but am undefiled," and the other one [also] says, "I was captured, but am undefiled," they are not believed. But when they testify on behalf of each other, they are believed.

(7) And similarly [is the case with] two men. This one says, "I am a kohen," and this one [also] says, "I am a kohen," neither of them is believed. But when they testimony on behalf of each other, they are believed.