עדיות ג׳Eduyot 3

Mishnah 1א׳

כָּל הַמְטַמְּאִין בְּאֹהֶל שֶׁנֶּחְלְקוּ, וְהִכְנִיסָן לְתוֹךְ הַבַּיִת, רַבִּי דוֹסָא בֶּן הַרְכִּינַס מְטַהֵר, וַחֲכָמִים מְטַמְּאִין. כֵּיצַד. הַנּוֹגֵעַ בְּכִשְׁנֵי חֲצָאֵי זֵיתִים מִן הַנְּבֵלָה אוֹ נוֹשְׂאָן, וּבַמֵּת, הַנּוֹגֵעַ בְּכַחֲצִי זַיִת וּמַאֲהִיל עַל כַּחֲצִי זַיִת אוֹ נוֹגֵעַ בְּכַחֲצִי זַיִת וְכַחֲצִי זַיִת מַאֲהִיל עָלָיו, וּמַאֲהִיל עַל כִּשְׁנֵי חֲצָאֵי זֵיתִים, מַאֲהִיל עַל כַּחֲצִי זַיִת וְכַחֲצִי זַיִת מַאֲהִיל עָלָיו, רַבִּי דוֹסָא בֶּן הַרְכִּינַס מְטַהֵר וַחֲכָמִים מְטַמְּאִין. אֲבָל הַנּוֹגֵעַ בְּכַחֲצִי זַיִת וְדָבָר אַחֵר מַאֲהִיל עָלָיו וְעַל כַּחֲצִי זַיִת, אוֹ מַאֲהִיל עַל כַּחֲצִי זַיִת וְדָבָר אַחֵר מַאֲהִיל עָלָיו וְעַל כַּחֲצִי זַיִת, טָהוֹר. אָמַר רַבִּי מֵאִיר, אַף בָּזֶה רַבִּי דוֹסָא מְטַהֵר וַחֲכָמִים מְטַמְּאִין. הַכֹּל טָמֵא, חוּץ מִן הַמַּגָּע עִם הַמַּשָּׂא, וְהַמַּשָּׂא עִם הָאֹהֶל. זֶה הַכְּלָל, כֹּל שֶׁהוּא מִשֵּׁם אֶחָד, טָמֵא. מִשְּׁנֵי שֵׁמוֹת, טָהוֹר:

All things that defile in a tent [i.e. anything that defiles that which is under its same roof-space], if [the pieces of the corpse] were divided and brought into the house: Rabbi Dosa the son of Harkinas [declares everything under the same roof-space] pure, but the Sages [declare it] impure. How so [i.e. what are they]? He who touches as much as two halves of an olive [in quantity] of an animal’s carcass or carries them; or in the case of a [human] corpse, he who touches as much as half an olive (and forms a tent over [i.e. stands over] as much as half an olive; or touches as much as half an olive) and as much as half an olive forms a tent above him; or if he forms a tent over as much as two halves of an olive; or if he forms a tent over as much as half an olive and as much as half an olive forms a tent above him: Rabbi Dosa the son of Harkinas [declares him] clean, and the Sages [declare him] unclean. But if he touches as much as half an olive [in quantity] and another thing forms a tent over him [that is] over as much as half an olive; (or if he forms a tent over as much as half an olive and another thing forms a tent over him and over as much as half an olive), [he is] clean [according to both Rabbi Dosa and the Sages]. Rabbi Meir said: Even in this case Rabbi Dosa [declares him] clean and the Sages [declare him] unclean. In all such cases [he is] unclean, unless there is an act of touching and also an act of carrying, or an act of carrying and also [the state of] being under the same tent. This is the general rule: [If in] whatever [case], [the means of transmitting impurity] are of one name [i.e. category], [he is] impure; if they are of two names, [he is] pure.

Mishnah 2ב׳

אֹכֶל פָּרוּד, אֵינוֹ מִצְטָרֵף, דִּבְרֵי רַבִּי דוֹסָא בֶּן הַרְכִּינַס. וַחֲכָמִים אוֹמְרִים, מִצְטָרֵף. מְחַלְּלִין מַעֲשֵׂר שֵׁנִי עַל אֲסִימוֹן, דִּבְרֵי רַבִּי דוֹסָא. וַחֲכָמִים אוֹמְרִים, אֵין מְחַלְּלִין. מַטְבִּילִין יָדַיִם לַחַטָּאת, דִּבְרֵי רַבִּי דוֹסָא. וַחֲכָמִים אוֹמְרִים, אִם נִטְמְאוּ יָדָיו, נִטְמָא גוּפוֹ:

Food [in] separate [pieces] does not combine [together to contract impurity]: the words of Rabbi Dosa the son of Harkinas. And the Sages say: It does combine. [One may] exchange [produce from] the second tithe for uncoined metal: the words of Rabbi Dosa. And the Sages say: [One may] not exchange. Hands [alone must be] immersed in order to [touch] the sin-cleansing [water]: These are the words of Rabbi Dosa. And the Sages say: If his hands have become impure, his body [also] becomes impure.