Mishnah Parah 2:5: [If] it had two black or white hairs from one pore, it is invalid. Rabbi Yehudah says: even from one cup [a bump of flesh from which several hairs grow]. If they [the two hairs] are from two cups, and they prove one another [giving indication that they grew in tandem], it is invalid. Rabbi Akiva says: Even four or even five scattered [hairs], they should be plucked [and the cow is valid]." Rabbi Eliezer says: Even fifty. Rabbi Yehoshua ben Beteira says: Even one at its head and one at its tail invalidate it. [If] it had two hairs whose roots are black and tips are red, [or] whose roots are red and tips are black, everything follows after the appearance [i.e. the tips], these are the words of Rabbi Meir; and the Sages say: after the root.

הָיוּ בָהּ שְׁתֵּי שְׂעָרוֹת שְׁחוֹרוֹת אוֹ לְבָנוֹת בְּתוֹךְ גֻּמָּא אַחַת, פְּסוּלָה. רַבִּי יְהוּדָה אוֹמֵר, אֲפִלּוּ בְתוֹךְ כּוֹס אֶחָד. הָיוּ בְתוֹךְ שְׁנֵי כוֹסוֹת וְהֵן מוֹכִיחוֹת זוֹ אֶת זוֹ, פְּסוּלָה. רַבִּי עֲקִיבָא אוֹמֵר, אֲפִלּוּ אַרְבַּע, אֲפִלּוּ חָמֵשׁ, וְהֵן מְפֻזָּרוֹת, יִתְלֹשׁ. רַבִּי אֱלִיעֶזֶר אוֹמֵר, אֲפִלּוּ חֲמִשִּׁים. רַבִּי יְהוֹשֻׁעַ בֶּן בְּתֵירָא אוֹמֵר, אֲפִלּוּ אַחַת בְּרֹאשָׁהּ וְאַחַת בִּזְנָבָהּ, פְּסוּלָה. הָיוּ בָהּ שְׁתֵּי שְׂעָרוֹת, עִקָּרָן מַשְׁחִיר וְרֹאשָׁן מַאְדִּים, עִקָּרָן מַאְדִּים וְרֹאשָׁן מַשְׁחִיר, הַכֹּל הוֹלֵךְ אַחַר הַנִּרְאֶה, דִּבְרֵי רַבִּי מֵאִיר. וַחֲכָמִים אוֹמְרִים, אַחַר הָעִקָּר:

Mishnah Parah 3:1: Seven days before the heifer is burnt, the priest who will burn the heifer is separated from his house to a chamber that is in front of the [main temple] building, in the Northeast, and it was called the Stone House, and he is sprinkled all seven days with all the [ashes of the] chata'ot [red heifers] that were [ever] there. Rabbi Yose says: They would only sprinkle on him on the third and seventh [days] alone. Rabbi Chanina the deputy priest says: On the priest who burns the heifer, they sprinkle all seven days; and on the priest [who performs the sacrificial services] of Yom Kippur, they would only sprinkle on the third and seventh [days] alone.

שִׁבְעַת יָמִים קֹדֶם לִשְׂרֵפַת הַפָּרָה מַפְרִישִׁין כֹּהֵן הַשּׂוֹרֵף אֶת הַפָּרָה מִבֵּיתוֹ לַלִּשְׁכָּה שֶׁעַל פְּנֵי הַבִּירָה, צָפוֹנָה מִזְרָחָה, וּבֵית אֶבֶן הָיְתָה נִקְרֵאת, וּמַזִּין עָלָיו כָּל שִׁבְעַת הַיָּמִים מִכָּל חַטָּאוֹת שֶׁהָיוּ שָׁם. רַבִּי יוֹסֵי אוֹמֵר, לֹא הָיוּ מַזִּין עָלָיו אֶלָּא בַשְּׁלִישִׁי וּבַשְּׁבִיעִי בִּלְבָד. רַבִּי חֲנִינָא סְגָן הַכֹּהֲנִים אוֹמֵר, עַל הַכֹּהֵן הַשּׂוֹרֵף אֶת הַפָּרָה, מַזִּין כָּל שִׁבְעַת הַיָּמִים. וְעַל שֶׁל יוֹם הַכִּפּוּרִים, לֹא הָיוּ מַזִּין עָלָיו אֶלָּא בַשְּׁלִישִׁי וּבַשְּׁבִיעִי בִּלְבָד: