Mishnah Taharos 7:6: If tax collectors [assumed to be impure] entered a house, the house is impure. If there is a non-Jew with them, they are believed to say, "We did not enter," but they are not believed to say, "We entered but did not touch anything." Robbers who entered a house, only places where the robbers walked are impure. And what do they render impure? Foods and drinks and open earthenware vessels; but beds, couches and earthenware vessels closed with a tight seal are pure. If there was a non-Jew or a woman with them, everything is impure.

הַגַּבָּאִים שֶׁנִּכְנְסוּ לְתוֹךְ הַבַּיִת, הַבַּיִת טָמֵא. אִם יֵשׁ עִמָּהֶן גּוֹי, נֶאֱמָנִים לוֹמַר לֹא נִכְנָסְנוּ, אֲבָל אֵין נֶאֱמָנִים לוֹמַר נִכְנַסְנוּ אֲבָל לֹא נָגָעְנוּ. הַגַּנָּבִים שֶׁנִּכְנְסוּ לְתוֹךְ הַבַּיִת, אֵין טָמֵא אֶלָּא מְקוֹם רַגְלֵי הַגַּנָּבִים. וּמַה הֵן מְטַמְּאִין. הָאֳכָלִים וְהַמַּשְׁקִים וּכְלֵי חֶרֶס הַפְּתוּחִין. אֲבָל הַמִּשְׁכָּבוֹת וְהַמּוֹשָׁבוֹת וּכְלֵי חֶרֶס הַמֻּקָּפִין צָמִיד פָּתִיל, טְהוֹרִים. אִם יֵשׁ עִמָּהֶן נָכְרִי אוֹ אִשָּׁה, הַכֹּל טָמֵא:

Mishnah Taharos 7:7: If one left his clothing in a cabinet [literally: a window] of a bath attendant, Rabbi Elazar ben Azariah declares them pure; and the Sages say: [they are not pure] until he [the attendant] gives him the key, or a seal, or makes a sign [to ensure the clothes were untouched]. One [a priest] who leaves his vessels from one wine press to the next wine press [i.e. he leaves his vessels by the wine press at the end of one season to use them for the next season], his vessels are pure. If he was [not a priest nor a Levite, but] an Israelite, [they are not pure] until he says, "I intended to watch over them."

הַמַּנִּיחַ אֶת כֵּלָיו בְּחַלּוֹן שֶׁל אוֹדְיָארִין, רַבִּי אֶלְעָזָר בֶּן עֲזַרְיָה מְטַהֵר. וַחֲכָמִים אוֹמְרִים, עַד שֶׁיִּתֶּן לוֹ אֶת הַמַּפְתֵּחַ אוֹ חוֹתָם אוֹ עַד שֶׁיַּעֲשֶׂה סִימָן. הַמַּנִּיחַ אֶת כֵּלָיו מִגַּת זוֹ לַגַּת הַבָּאָה, כֵּלָיו טְהוֹרִין. וּבְיִשְׂרָאֵל, עַד שֶׁיֹּאמַר בְּלִבִּי הָיָה לְשָׁמְרָם: