Reference for Kelim 8:6

בֵּית שְׂאֹר מֻקָּף צָמִיד פָּתִיל וְנָתוּן לְתוֹךְ הַתַּנּוּר, הַשְּׂאֹר וְהַשֶּׁרֶץ בְּתוֹכוֹ וְהַקֶּרֶץ בֵּינְתַיִם, הַתַּנּוּר טָמֵא וְהַשְּׂאֹר טָהוֹר. וְאִם הָיָה כַזַּיִת מִן הַמֵּת, הַתַּנּוּר וְהַבַּיִת טָמֵא, וְהַשְּׂאֹר טָהוֹר. אִם יֶשׁ שָׁם פּוֹתֵחַ טֶפַח, הַכֹּל טָמֵא:

If a leavening pot with a tightly fitting lid was put in an oven, and there was some leaven and a <em>sheretz</em> within the pot, but there was a partition of inedible bread between them, the oven is impure but the leaven is pure. But if there was was an olive's bulk of a corpse [in the pot] both the oven and the house are impure, but the leaven remains pure. If in the partition [in the leaven pot] there was an opening of one handbreadth, all become impure.

Jastrow