נגעים י״גNegaim 13

Mishnah 1א׳

עֲשָׂרָה בָתִּים הֵן, הַכֵּהֶה בָרִאשׁוֹן, וְהַהוֹלֵךְ לוֹ, קוֹלְפוֹ וְהוּא טָהוֹר. הַכֵּהֶה בַשֵּׁנִי, וְהַהוֹלֵךְ לוֹ, קוֹלְפוֹ וְהוּא טָעוּן צִפֳּרִים. הַפּוֹשֶׂה בָרִאשׁוֹן, חוֹלֵץ וְקוֹצֶה וְטָח וְנוֹתֵן לוֹ שָׁבוּעַ. חָזַר, יִנָּתֵץ. לֹא חָזַר, טָעוּן צִפֳּרִים. עָמַד בָּרִאשׁוֹן וּפָשָׂה בַשֵּׁנִי, חוֹלֵץ וְקוֹצֶה וְטָח וְנוֹתֵן לוֹ שָׁבוּעַ. חָזַר, יִנָּתֵץ. לֹא חָזַר, טָעוּן צִפֳּרִים. עָמַד בָּזֶה וּבָזֶה, חוֹלֵץ וְקוֹצֶה וְטָח וְנוֹתֵן לוֹ שָׁבוּעַ. חָזַר, יִנָּתֵץ. לֹא חָזַר, טָעוּן צִפֳּרִים. אִם עַד שֶׁלֹּא טִהֲרוֹ בַצִּפֳּרִים נִרְאָה בוֹ נֶגַע, הֲרֵי זֶה יִנָּתֵץ. וְאִם מִשֶּׁטִּהֲרוֹ בַצִּפֳּרִים נִרְאָה בוֹ נֶגַע, יֵרָאֶה בַּתְּחִלָּה:

There are ten [cases] of houses. If it dulls during the first [week] or goes away, he scrapes it off and it is pure. If it dulls during the second [week] or goes away, he scrapes it off and it requires [sacrificial] birds. If it spreads in the first [week], he removes, scrapes and plasters and gives it a week. If it returns, [the house] must be destroyed. If it does not return, it requires birds. If it stood [unchanged] after the first [week] and spread during the second [week], he removes, scrapes and plasters, and gives it a week. If it returned, the house must be destroyed. If it does not return, it requires birds. If it stood [unchanged] after this [first] and this [second week], he removes, scrapes, and plasters, and gives it a week. If it returns, the house must be destroyed. If it does not return, it requires birds. If before he purified it with birds the Nega [diseased patch on skin, clothes, or houses that creates impurity] reappeared, it must be destroyed. Once it has been purified with birds, if the Nega reappears, it should be examined as if in the beginning [of the Nega].

Mishnah 2ב׳

הָאֶבֶן שֶׁבַּזָּוִית, בִּזְמַן שֶׁהוּא חוֹלֵץ, חוֹלֵץ אֶת כֻּלּוֹ. וּבִזְמַן שֶׁהוּא נוֹתֵץ, נוֹתֵץ אֶת שֶׁלּוֹ וּמַנִּיחַ אֶת שֶׁל חֲבֵרוֹ. נִמְצָא חֹמֶר בַּחֲלִיצָה מִבַּנְּתִיצָה. רַבִּי אֶלְעָזָר אוֹמֵר, בַּיִת הַבָּנוּי רֹאשׁ וּפִתִּין, נִרְאָה בָרֹאשׁ, נוֹטֵל אֶת כֻּלּוֹ. נִרְאָה בַפִּתִּין, נוֹטֵל אֶת שֶׁלּוֹ וּמַנִּיחַ אֶת שֶׁל חֲבֵרוֹ:

A cornerstone, when he removes it, is removed in its entirety, but when he destroys [the house], he destroys what belongs to him but leaves what belongs to his neighbor. We find a stringency in the case of removal beyond that of demolition. Rabbi Elazar says, a house built with a cross-beam and a king-beam, if it appeared on the cross-beam he must remove it all, if it appeared on the king-beam, he removes what belongs to him but leaves what belongs to his neighbor.