“Rambam also says that mitzvos apply only in EY”. What’s the source for this? And this is all mitzvos? I remember reading that someome (maybe Rambam) holds that Tefillin and Mezuzah apply only in EY, but that in reality the original author probably said trumah and maiser, and abbreviated it as T’M, and later someone incorrectly translated that as Tefillin and Mezuzah.
