Talmud for Gittin 1:5
כָּל גֵּט שֶׁיֵּשׁ עָלָיו עֵד כּוּתִי, פָּסוּל, חוּץ מִגִּטֵּי נָשִׁים וְשִׁחְרוּרֵי עֲבָדִים. מַעֲשֶׂה, שֶׁהֵבִיאוּ לִפְנֵי רַבָּן גַּמְלִיאֵל לִכְפַר עוֹתְנַאי גֵּט אִשָּׁה וְהָיוּ עֵדָיו עֵדֵי כוּתִים, וְהִכְשִׁיר. כָּל הַשְּׁטָרוֹת הָעוֹלִים בְּעַרְכָּאוֹת שֶׁל גּוֹיִם, אַף עַל פִּי שֶׁחוֹתְמֵיהֶם גּוֹיִם, כְּשֵׁרִים, חוּץ מִגִּטֵּי נָשִׁים וְשִׁחְרוּרֵי עֲבָדִים. רַבִּי שִׁמְעוֹן אוֹמֵר, אַף אֵלּוּ כְשֵׁרִין, לֹא הֻזְכְּרוּ אֶלָּא בִזְמַן שֶׁנַּעֲשׂוּ בְהֶדְיוֹט:
Every bill on which a Cuthite witness is signed is invalid, except the gittin of women and the manumissions of bondsmen, [which are valid if one of the witnesses is a Cuthite. But if both are Cuthites, the first tanna invalidates it, even with the gittin of women.] The get of a woman on which Cuthite witnesses were signed was once brought before R. Gamliel in Kfar Otnai, and he validated it. [R. Gamliel validated it even where both were Cuthites. And today, after the decree that Cuthites be considered like gentiles in all respects, the gittin of women are not different from other writs; even one Cuthite witness renders a writ invalid.] All writs which are adjudicated in gentile courts, [the witnesses having testified before the judge in their place of judgment], even if they are signed by gentiles, are valid. [This, where we know the judge and the witnesses not to take bribes], except for the gittin of women and the manumissions of bondsmen. [(The validity obtains) only in respect to writs of loans and sales, where the witnesses beheld the transfer of money. But writs of indebtedness and the gittin of women, and all things which are enactments of beth-din — all such things are invalid in their courts.] R. Shimon says: These, too, are valid. They were not mentioned [in the house of study as being invalid] except where they were enacted by [gentiles who were] laymen, [not judges. The halachah is not in accordance with R. Shimon.]
Jerusalem Talmud Yevamot
There is no doubt in the Yerushalmi that the original Samaritans were Jews. They consider the children of a Jewish mother from a Gentile as Jewish, as is accepted as practice, under Babylonian influence, in the next Halakhah and as already was decided in Halakhah 4:15.. In Qiddushin one says, Rebbi Joḥanan and Rebbi Simeon ben Laqish both say, the child is a bastard. Here he says it in his own name but there he says it in the name of Rebbi Ismael! For also according to the words of the Sages the child is a bastard. Rebbi Ḥizqiah did not say so, but: the argument of Rebbi Joḥanan is reversed. In Giṭṭin he says, why are Samaritans disqualified? Rebbi Joḥanan in the name of Rebbi Ismael: Because if a Gentile or slave has intercourse with a Jewish woman, the child is a bastard. In Qiddushin one says, Rebbi Joḥanan and Rebbi Simeon ben Laqish both say, the child is a bastard. Here he says, from [a man] with whom she has widowhood or divorce she returns, from [a man] with whom she has no relation of widowhood or divorce she does not return130This implies that the child of a Gentile or a slave is not a bastard since the only person to be affected is the mother who cannot return to her priestly status if she was the daughter of a Cohen.. Rebbi Mattaniah said, I went to Seḥora and heard: Rebbi Joḥanan and Rebbi Ismael the sons of Jesua: “If a Cohen’s daughter becomes a widow or a divorcee without issue,127Lev. 22:13. “If a Cohen’s daughter becomes a widow or a divorcee without issue, when she returns to her father’s house as in her youth, she shall eat from her father’s food.”” from [a man] with whom she has widowhood or divorce she returns, from [a man] with whom she has no relation of widowhood or divorce she does not return. And I said, that is correct, there is no bastard, following Rebbi Joshua131It really is following R. Simeon from Timna (Mishnah 4:14), but the more liberal R. Joshua will certainly agree that there is no hint of bastardy attached to the child. If the child is a girl, she will be disqualified from the priesthood, cf. Halakhah 4:15., for a bastard is only from a woman which is for him under an incest prohibition and for whom one is punished by divine extirpation.