I received this question via email. I am not really a klaf expert, I was wondering if anyone could answer this question: Dear Rabbi Gutnick, I am writing to you because a good friend of mine has put the idea into my head that the klaf in my tefillin were not really tanned and therefore are not kosher. He referred me to Megilla 19a re diftera. From the research that I have done so far, it seems that the klaf that is used today is tanned only with a lime wash. On all of the tanning websites I’ve seen so far, they say that the lime doesn’t accomplish tanning but only the removal of the hair and some other pre-tanning effects. Would you be able to explain to me or refer me to a website that explains how the tanning process that is used today takes the hide out of the category of diftera? Thank you very much.
Harav Meir Mazuz allows writing a name on the bottom of the batim and/on the end of the back side of the retzuos (as long as the lettering isn’t raised). (Mekor Ne’eman 66 and 70)
ReplyDeleteAny other mekoros?
מלאכת שמים
ReplyDeleteThanks. Do you know where in the Meleches shamayim?
DeleteSee last paragraph in the בינה, סימן יט
Deletethank you! Interesting that it's not mentioned in any of the sources I note. Did you see any sources who bring this Meleches Shamayim?
DeleteThe only other 2 sources I've found are Zichron Eliyahu pages 365-366, based on Rama Mipano siman 38, not to write on back of batim and possibly not on back of retzuos
ReplyDeleteShu"t Shevet Hakehati 2:28 seems to okay writing on the back of the retzuos. Interestingly, Piskei Teshuvos presents this as a source to allow writing on the bottom of batim and retzuos but in his latest printing he leaves it out and writes not to write anything on the back, though he doesn't really bring a source to support it.
Keses Hasofer 26:4. Also based on Rama Mipano.
ReplyDelete