Siman - Shabbos Daf 79

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Shiur for unprocessed hide

Rav Nachman told Rava that unprocessed hide has the same minimum shiur to be liable for carrying, as processed hide, which is the amount to make a kameya. He brings a proof from a Mishnah later on that teaches that the minimum shiur for melaben (whitening wool), menapetz (disentangling it), and tzoveah (dying), is the same shiur for toveh (spinning the thread), since the raw wool stands to be spun into thread.

Here too, in the case of unprocessed hide, its shiur is the same shiur as tanned hide, since it stands to be tanned.

Which part of tefillin makes one’s hands tamei?

It was taught in a Baraisa regarding which parts of the tefillin renders one’s hands tamei when touched, in keeping with one of the eighteen enactments learned earlier on (Daf 14a).

• Tanna Kamma: The straps of the tefillin make one’s hands tamei, when they are attached to the tefillin.

• Rebbe Shimon ben Yehudah said in the name of Rebbe Shimon: Touching the קציצה (the leather boxes) renders one’s hands tamei.

• Rebbe Zakkai says in the name of Rebbe Yehuda: One’s hands only become tamei if they touch the mezuzah (the scroll of the tefillin) itself.

What tefillin and mezuzahs are written on

It was taught in a Baraisa that it is Halachah L’Moshe M’Sinai that tefillin must be written on klaf, which is the outer layer of the hide, and a mezuzah must be written on duchsustus, which is the inner layer of the hide. When one writes on the klaf, he must write on the side of the klaf that originally faced the flesh of the animal, and when writing on duchsustus, he must write on the side that originally faced the hair of the animal.

This Baraisa was brought as one of the many challenges to Rav, who said that tefillin may also be written on duchsustus. The Gemara deflects this challenge by saying that the Halachah L’Moshe M’Sinai may be only stating how to fulfill the mitzvah of writing tefillin in the best way possible, however, tefillin written on duchsustus may still be kosher.

Siman – Pen (Scribe with a quill). The rookie scribe took his quill and practiced writing on unprocessed hide the size of a kameya, when all of a sudden he realized his hands were tamei from touching his tefillin scrolls that were written on klaf. Key Words – unprocessed hide, tamei from tefillin, klaf

Rabbi Avraham Goldhar

Rabbi Avraham Goldhar has been designing and teaching Jewish literacy courses for over thirty years. His knowledge frameworks for Biblical mastery, Jewish History, Talmudic Law & Jewish Holidays enable students of all backgrounds to better integrate Jewish concepts and learn systematically. After serving as the Educational Director of Aish HaTorah New York, Avraham launched GoldharSchool.com, Home of Big Picture Jewish Education, featuring Jewish literacy content for schools and individuals. He is the developer of the Goldhar Method, a revolutionary learning system that integrates memory into the learning process and has trained over 80,000 students, teachers and professionals. He lectures internationally on the topic of academic mastery and the solutions required to raise the bar in education. Avraham learned in Aish HaTorah, Mir, and Chaim Berlin and received his ordination under the tutelage of Rabbi Yitzchok Berkovits in Jerusalem.