[Avodah] Tefillin on Rosh Chodesh

[Moshe Y. Gluck]

R' David Riceman:
> It also seems that in the thirteenth century both Spain and Ashkenaz
> were divided about whether to wear tefillin on Hol HaMoed.  The Beis
> Yosef (siman 31) says that after the Zohar appeared the custom in Spain
> became uniformly against wearing them.  As a tangent to another thread,
> how is one to harmonize this with the Hazon Ish's opinion about
> revising
> halachah based on new manuscripts of ancient opinions?


Hanach La'hem L'Yisrael - Im Lo Neviim Heim, B'nei Neviim Heim. I would
assume that the CI would say that the Posek would not change his Psak based
on the new manuscript, but once the Minhag spreads in spite of that, it is a
Minhag like any other.

KT,
MYG