Commentary for Menachot 64:1

דכתבינהו אדוכסוסטוס במקום בשר

he wrote them on that side of duksustus nearest to the flesh.<span class="x" onmousemove="('comment',' And in either case it is invalid, for the Scriptural portions of the tefillin must be written only on the internal side of kelaf, i.e., the side nearest to the flesh, and any variation would render invalid. On the other hand the mezuzah may be written on any kind of parchment, kelaf or duksustus.');">¹</span> Alternatively I can say that the ruling, 'If on did otherwise in either case<span class="x" onmousemove="('comment',' I.e., both as regards the tefillin and the mezuzah.');">²</span> [it is invalid]', is dependent upon Tannaim.

Explore commentary for Menachot 64:1. In-depth commentary and analysis from classical Jewish sources.