בבא מציעא ח׳Bava Metzia 8

Mishnah 3ג׳

הַשּׁוֹאֵל אֶת הַפָּרָה, וְשִׁלְּחָהּ לוֹ בְּיַד בְּנוֹ, בְּיַד עַבְדּוֹ, בְּיַד שְׁלוּחוֹ, אוֹ בְיַד בְּנוֹ, בְּיַד עַבְדּוֹ, בְּיַד שְׁלוּחוֹ שֶׁל שׁוֹאֵל, וָמֵתָה, פָּטוּר. אָמַר לוֹ הַשּׁוֹאֵל, שַׁלְּחָהּ לִי בְּיַד בְּנִי, בְּיַד עַבְדִּי, בְּיַד שְׁלוּחִי, אוֹ בְּיַד בִּנְךָ, בְּיַד עַבְדְּךָ, בְּיַד שְׁלוּחֲךָ, אוֹ שֶׁאָמַר לוֹ הַמַּשְׁאִיל, הֲרֵינִי מְשַׁלְּחָהּ לְךָ בְּיַד בְּנִי, בְּיַד עַבְדִּי, בְּיַד שְׁלוּחִי, אוֹ בְּיַד בִּנְךָ, בְּיַד עַבְדְּךָ, בְּיַד שְׁלוּחֲךָ, וְאָמַר לוֹ הַשּׁוֹאֵל, שַׁלַּח, וְשִׁלְּחָהּ וָמֵתָה, חַיָּב. וְכֵן בְּשָׁעָה שֶׁמַּחֲזִירָהּ:

[If] one borrowed a cow, and [the lender] sent it to him in the hands of his son, in the hands of his [own] slave, in the hands of his [own] agent, or in the hands of [the borrower's] son, in the hands of his slave, in the hands of an agent, and it died, he is exempt. If the borrower said to him, “Send it to me in the hands of my son,” “In the hands of my slave,” “In the hands of my agent,” or “In the hands of your son,” “In the hands of your slave,” [or] “In the hands of your agent," or if the lender said to him, “Behold, I am sending it to you in the hands of my son,” “In the hands of my slave,” [or] “In the hands of my agent,” or “In the hands of your son,” “In the hands of your slave,” “In the hands of your agent,” and the borrower said to him, “Send [it],” and he sent it and it died, he is liable. And so too at the time when he returns it.

Mishnah 4ד׳

הַמַּחֲלִיף פָּרָה בַּחֲמוֹר וְיָלְדָה, וְכֵן הַמּוֹכֵר שִׁפְחָתוֹ וְיָלְדָה, זֶה אוֹמֵר עַד שֶׁלֹּא מָכָרְתִּי, וְזֶה אוֹמֵר מִשֶּׁלָּקָחְתִּי, יַחֲלֹקוּ. הָיוּ לוֹ שְׁנֵי עֲבָדִים, אֶחָד גָּדוֹל וְאֶחָד קָטָן, וְכֵן שְׁתֵּי שָׂדוֹת, אַחַת גְּדוֹלָה וְאַחַת קְטַנָּה, הַלּוֹקֵחַ אוֹמֵר גָּדוֹל לָקַחְתִּי, וְהַלָּה אוֹמֵר אֵינִי יוֹדֵעַ, זָכָה בַגָּדוֹל. הַמּוֹכֵר אוֹמֵר קָטָן מָכָרְתִּי, וְהַלָּה אוֹמֵר אֵינִי יוֹדֵעַ, אֵין לוֹ אֶלָּא קָטָן. זֶה אוֹמֵר גָּדוֹל וְזֶה אוֹמֵר קָטָן, יִשָּׁבַע הַמּוֹכֵר שֶׁהַקָּטָן מָכָר. זֶה אוֹמֵר אֵינִי יוֹדֵעַ וְזֶה אוֹמֵר אֵינִי יוֹדֵעַ, יַחֲלֹקוּ:

[If] one exchanged a cow for a donkey, and it gave birth, and so too [if] one sold his female slave and she gave birth: this one says, “[It was] before I sold [her],” and this one says, “After I bought [her]," they should divide. He had two slaves, one large and one small, and so too with two fields, one large and one small: The buyer says, “I bought the large one,” and the other says, “I don’t know,” he obtains the large one. The seller says, “I sold the small one,” and the other says, “I do not know,” he [can] only [claim] the small one. This one says, “It was the large one,” and the other one says, “It was the small one,” the seller must swear that he sold the small one. This one says, “I do not know,” and the other one says, “I do not know,” they should divide.