Reference for Kelim 3:3

חָבִית שֶׁנִּקְּבָה וַעֲשָׂאָהּ בְּזֶפֶת, וְנִשְׁבְּרָה, אִם יֵשׁ בִּמְקוֹם הַזֶּפֶת מַחֲזִיק רְבִיעִית, טְמֵאָה, מִפְּנֵי שֶׁלֹּא בָטַל שֵׁם כְּלִי מֵעָלֶיהָ. חֶרֶס שֶׁנִּקַּב וַעֲשָׂאוֹ בְזֶפֶת, אַף עַל פִּי מַחֲזִיק רְבִיעִית, טָהוֹר, מִפְּנֵי שֶׁבָּטַל שֵׁם כְּלִי מֵעָלָיו:

A jug which had a hole which was repaired with pitch, and it was then broken: if there is in the place of the pitch [an area large] enough to hold a <em>revi'it</em>, it is still impure because it did not lose the status of a vessel. If it was made of earthenware and it was pierced and repaired with pitch, even if it holds a <em>revi'it</em> it is pure because it lost the status of a vessel.

Jastrow