Reference for Kelim 23:1

הַנּוֹגֵעַ בָּהֶן, טָמֵא. וּבְמַה שֶּׁבְּתוֹכָן, טָהוֹר. הָאֻכָּף שֶׁנִּקְרַע, הַנּוֹגֵעַ בְּמַה שֶּׁבְּתוֹכוֹ, טָמֵא, מִפְּנֵי שֶׁהַתֶּפֶר מְחַבְּרוֹ:

A ball, a mold, an amulet or tefillin which were torn [after becoming impure]: one that touches them becomes impure, but one that touches what is inside them remains pure. A saddle which was torn: one that touches its contents becomes impure, because the stitching joins them.

Jastrow

Jastrow

Jastrow

Jastrow