Related for Parah 3:1
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:
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] <i>chata'ot</i> [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.