כְּלִי חֶרֶס שֶׁהָיָה בּוֹ אֵפר חַטָּאת וְנָגַע בּוֹ שֶׁרֶץ מִצִּדּוֹ טָהוֹר שֶׁאֵין כְּלִי חֶרֶס מִטַּמֵּא מִגַּבּוֹ אֲפִלּוּ לְגַבֵּי חַטָּאת. הִנִּיחַ הַכְּלִי עַל גַּבֵּי הַשֶּׁרֶץ אַף עַל פִּי שֶׁלֹּא נִטְמָא הַכְּלִי הֲרֵי הָאֵפֶר טָמֵא שֶׁנֶּאֱמַר (במדבר יט ט) "וְהִנִּיחַ מִחוּץ לַמַּחֲנֶה בְּמָקוֹם טָהוֹר" וְאֵין זֶה מָקוֹם טָהוֹר. וְלֹא עַל גַּבֵּי הַשֶּׁרֶץ בִּלְבַד אֶלָּא אֲפִלּוּ הִנִּיחוֹ עַל גַּבֵּי אֹכֶל שֵׁנִי וְכַיּוֹצֵא בּוֹ מִדְּבָרִים שֶׁטֻּמְאָתָן טֻמְאָה קַלָּה וְהֵם מִדִּבְרֵי סוֹפְרִים הֲרֵי נִטְמָא הָאֵפֶר שֶׁנֶּאֱמַר בְּמָקוֹם טָהוֹר שֶׁלֹּא יִהְיֶה עַל [גַּבֵּי] שׁוּם טֻמְאָה בָּעוֹלָם. וְכֵן כְּלִי חֶרֶס שֶׁהָיָה בּוֹ אֵפֶר חַטָּאת וְנָתוּן עַל אֲרֻבָּה שֶׁבַּבַּיִת טָמֵא. אִם הָיָה הַכְּלִי מְשֻׁלְשָׁל לַבַּיִת נִטְמָא הָאֵפֶר וְאַף עַל פִּי שֶּׁאֵין בָּאֲרֻבָּה פּוֹתֵחַ טֶפַח. וְאִם לֹא הָיָה מְשֻׁלְשָׁל אִם הָיָה בָּאֲרֻבָּה פּוֹתֵחַ טֶפַח טָמֵא:
When an earthenware container that held the ashes of a red heifer was touched by the carcass of a crawling animal on its side, it is pure, for an earthenware container does not contract impurity from its outside, even with regard to this purification process. If, however, one placed the container on top of the carcass of the crawling animal, the ashes contract impurity, even though the container remains pure, as indicated by Numbers 19:9: states: "And he shall place them down outside the camp in a pure place," and this is not a pure place. Not only does placing the ashes on the carcass of a crawling animal render them impure, they contract impurity even if they are placed on food which is a secondary derivative of impurity or the like which are less substantial types of impurity originating in Rabbinic decrees. For it is written: "A pure place," i.e., that they should not be placed on any impurity whatsoever. Similar rulings apply if an earthenware container holding the ashes of the red heifer was placed on an aperture in an impure house. If the container was hanging within the inner space of the house, the ashes contract impurity even if the aperture was not a handbreadth by a handbreadth in size. If it was not hanging into the inner space of the house, it is impure if the aperture is a handbreadth by a handbreadth in size.
