Bava Kama5: 3
הִכְנִיס שׁוֹרוֹ לַחֲצַר בַּעַל הַבַּיִת שֶׁלֹּא בִרְשׁוּת, וּנְגָחוֹ שׁוֹרוֹ שֶׁל בַּעַל הַבַּיִת, אוֹ שֶׁנְּשָׁכוֹ כַלְבּוֹ שֶׁל בַּעַל הַבַּיִת, פָּטוּר. נָגַח הוּא שׁוֹרוֹ שֶׁל בַּעַל הַבַּיִת, חַיָּב. נָפַל לְבוֹרוֹ וְהִבְאִישׁ מֵימָיו, חַיָּב. הָיָה אָבִיו אוֹ בְנוֹ לְתוֹכוֹ, מְשַׁלֵּם אֶת הַכֹּפֶר. וְאִם הִכְנִיס בִּרְשׁוּת, בַּעַל הֶחָצֵר חַיָּב.  רַבִּי אוֹמֵר: בְּכֻלָּן אֵינוֹ חַיָּב עַד שֶׁיְּקַבֵּל עָלָיו לִשְׁמֹר.
[If] one brings his bull into another's yard with-out permission, and the other person's bull gores it, or the other person's dog bites it, he is exempt. [If] it gores the other person's bull, [the owner of the goring bull] is liable. [If] it falls into his pit and makes its water foul, he is liable. [If] his father or his son was in it, he pays ransom. But if he brings [it] in with permission, the owner of the yard is liable.  Rabbi says: In no case is he liable unless he accepts to watch.
Bava Kama5: 4
שׁוֹר שֶׁהָיָה מִתְכַּוֵּן לַחֲבֵרוֹ וְהִכָּה אֶת הָאִשָּׁה, וְיָצְאוּ יְלָדֶיהָ, פָּטוּר מִדְּמֵי וְלָדוֹת. וְאָדָם שֶׁהָיָה מִתְכַּוֵּן לַחֲבֵרוֹ וְהִכָּה אֶת הָאִשָּׁה, וְיָצְאוּ יְלָדֶיהָ, מְשַׁלֵּם דְּמֵי וְלָדוֹת.  כֵּיצַד מְשַׁלֵּם דְּמֵי וְלָדוֹת? שָׁמִין אֶת הָאִשָּׁה כַּמָּה הִיא יָפָה עַד שֶׁלֹּא יָלְדָה וְכַמָּה הִיא יָפָה מִשֶּׁיָּלְדָה. אָמַר רַבָּן שִׁמְעוֹן בֶּן גַּמְלִיאֵל: אִם כֵּן, מִשֶּׁהָאִשָּׁה יוֹלֶדֶת, מַשְׁבַּחַת! אֶלָּא, שָׁמִין אֶת הַוְּלָדוֹת כַּמָּה הֵן יָפִין, וְנוֹתֵן לַבַּעַל; וְאִם אֵין לָהּ בַּעַל, נוֹתֵן לְיוֹרְשָׁיו. הָיְתָה שִׁפְחָה וְנִשְׁתַּחְרְרָה, אוֹ גִיּוֹרֶת, פָּטוּר.
[If] a bull aims for another bull and strikes a woman, causing her to abort, [its owner] is exempt from [paying] the value of the fetus. But [if] a person aims for another person and strikes a woman, causing her to abort, he pays the value of the fetus.  How does one pay the value of the fetus? We appraise how much the woman was worth before giving birth and how much she is worth since she gave birth. Said Rabban Shimon ben Gamliel: If so, when the woman gives birth, she increases in value! Ra-ther, we appraise how much the fetus was worth, and he gives [it] to the husband; if she has no husband, he gives [it] to his heirs. [If] she had been a slave who was freed, or a proselyte, he is exempt.