New answers tagged chol-hamoed
The source is a zohar in Shir Hashirim Chapter 8. When I looked it up it seemed to me that he wasn't recording normative practice but innovating based on his contemporary the Arizal. That would also explain why so many ashkenazim don't wear tefillin on chol hamoed but litvaks and yekkes who were less influenced by chassidus and hence by the Arizal still do.
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