Chapter 10, Mishna 1
If we find lost Tefillin on Shabbos in the public domain, we don them in the regular manner of wrapping Tefillin so we can “wear” them home rather than carry. But how do we know they are Tefillin? What makes defines these ritual objects, and where do these laws originate? In “a time of danger” we handle the situation differently, but what is a time a of danger?