בבא קמא א׳Bava Kamma 1

Mishnah 1א׳

אַרְבָּעָה אֲבוֹת נְזִיקִין, הַשּׁוֹר וְהַבּוֹר וְהַמַּבְעֶה וְהַהֶבְעֵר. לֹא הֲרֵי הַשּׁוֹר כַּהֲרֵי הַמַּבְעֶה, וְלֹא הֲרֵי הַמַּבְעֶה כַּהֲרֵי הַשּׁוֹר. וְלֹא זֶה וָזֶה, שֶׁיֵּשׁ בָּהֶן רוּחַ חַיִּים, כַּהֲרֵי הָאֵשׁ, שֶׁאֵין בּוֹ רוּחַ חַיִּים. וְלֹא זֶה וָזֶה, שֶׁדַּרְכָּן לֵילֵךְ וּלְהַזִּיק, כַּהֲרֵי הַבּוֹר, שֶׁאֵין דַּרְכּוֹ לֵילֵךְ וּלְהַזִּיק. הַצַּד הַשָּׁוֶה שֶׁבָּהֶן, שֶׁדַּרְכָּן לְהַזִּיק וּשְׁמִירָתָן עָלֶיךָ. וּכְשֶׁהִזִּיק, חָב הַמַּזִּיק לְשַׁלֵּם תַּשְׁלוּמֵי נֶזֶק בְּמֵיטַב הָאָרֶץ:

[There are] four categories of damages: The ox, the pit, the grazer, and the fire. The [characteristics] of the ox are not similar to the [characteristics] of the grazer. And the [characteristics] of the grazer are not similar to the [characteristics] of the ox. Nor are either of these, which have a living spirit, similar to the fire, which has no living spirit. Nor are any of these, which move and do damage, similar to the pit, which does not move and does damage. What is common among them is that they do damage, and the responsibility for their supervision is upon you. And when they do damage, the damager must pay from the best of the land.

Mishnah 2ב׳

כָּל שֶׁחַבְתִּי בִשְׁמִירָתוֹ, הִכְשַׁרְתִּי אֶת נִזְקוֹ. הִכְשַׁרְתִּי בְמִקְצָת נִזְקוֹ, חַבְתִּי בְתַשְׁלוּמִין כְּהֶכְשֵׁר כָּל נִזְקוֹ. נְכָסִים שֶׁאֵין בָּהֶם מְעִילָה, נְכָסִים שֶׁל בְּנֵי בְרִית, נְכָסִים הַמְיֻחָדִים, וּבְכָל מָקוֹם חוּץ מֵרְשׁוּת הַמְיֻחֶדֶת לַמַּזִּיק וּרְשׁוּת הַנִּזָּק וְהַמַּזִּיק. וּכְשֶׁהִזִּיק, חָב הַמַּזִּיק לְשַׁלֵּם תַּשְׁלוּמֵי נֶזֶק בְּמֵיטַב הָאָרֶץ:

Once I have accepted the duty of care for a thing, I have prepared the way for its causation of damage. Once I have partially prepared the way for its causation of damage, I have accepted monetary liability for damages as if I had prepared the way for the entirely of its causation of damage. In cases of things that cause damage to properties not covered by sacrilege laws, properties which belong to members of the Covenant, owned properties, and properties located outside the private domain of the defendant or the shared private domain of the plaintiff and the defendant, the defendant must pay the monetary judgement for damages from the best land.