Bava Metzia1: 1
שְׁנַיִם אוֹחֲזִין בְּטַלִּית, זֶה אוֹמֵר: ,,אֲנִי מְצָאתִיהָ”, וְזֶה אוֹמֵר: ,,אֲנִי מְצָאתִיהָ”, זֶה אוֹמֵר: ,,כֻּלָּהּ שֶׁלִּי”, וְזֶה אוֹמֵר: ,,כֻּלָּהּ שֶׁלִּי” — זֶה יִשָּׁבַע שֶׁאֵין לוֹ בָהּ פָּחוֹת מֵחֶצְיָהּ, וְזֶה יִשָּׁבַע שֶׁאֵין לוֹ בָהּ פָּחוֹת מֵחֶצְיָהּ, וְיַחֲלֹקוּ. זֶה אוֹמֵר: ,,כֻּלָּהּ שֶׁלִּי”, וְזֶה אוֹמֵר: ,,חֶצְיָהּ שֶׁלִּי” — הָאוֹמֵר ,,כֻּלָּהּ שֶׁלִּי” יִשָּׁבַע שֶׁאֵין לוֹ בָהּ פָּחוֹת מִשְּׁלשָׁה חֲלָקִים, וְהָאוֹמֵר: ,,חֶצְיָהּ שֶׁלִּי” יִשָּׁבַע שֶׁאֵין לוֹ בָהּ פָּחוֹת מֵרְבִיעַ, זֶה נוֹטֵל שְׁלשָׁה חֲלָקִים, וְזֶה נוֹטֵל רְבִיעַ.
[If] two [persons] are holding a cloak, [and] one says: “I found it,” and the other says: “I found it,” [or] one says: “It is all mine,” and the other says: “It is all mine” —- this one must swear that he owns no less of it than half, and that one must swear that he owns no less of it than half, and they divide [it].  [If] one says: “It is all mine,” and the other says: “Half of it is mine” —- he who says: “It is all mine,” must swear that he owns no less of it than three quarters, and he who says: “Half of it is mine,” must swear that he owns no less of it than one quarter, [and] this one takes three quarters, and that one takes one quarter.