Denying Validity of the Zohar
Recently I came across a learned man who denies the authenticity of the Zohar hakadosh. Would that render him a mummar be’dovor echod?
The Zohar has been accepted as an integral part of Torah Shebal Peh by the greatest leaders and minds of the Jewish people for many hundreds of years, including the Shulchan Aruch himself who is the the basis for practical halacha and Jewish law. This is aside from the Arizal, and before him many Rishonim and Achronim.
One who denies it’s validity is hence denying a part of our Torah. However since there are those who are mistakenly led to believe that there is validity to this misguided argument, they would not be considered an Apikorus [heretic], rather as a believing Jew who is making a very big unfortunate mistake.