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From
<a href="http://www.hakirah.org/Vol%204%20Rabinowitz.pdf" eudora="autourl">
http://www.hakirah.org/Vol%204%20Rabinowitz.pdf</a><br><br>
The Gra disagreed with R. Yosef Karo's ruling [that one must wear a
head covering] and countered that one is <i>never</i> obligated to wear a
head covering, even while participating in a religious event.
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See the URL above for more.<br>
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