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prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem

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Shabbos 121


1. What do a Zav and a Zavah, a Metzorah and a Metzora'as, a Bo'el Nidah and a Tamei Mes all have in common as regards Tum'ah?
2. What does the Beraisa mean when it states 'Tevilasan ba'Yom'?
(b) 'Nidah ve'Yoledes, Tevilasan ba'Laylah'. What does that mean, and why?

(c) 'Ba'al Keri Tovel ve'Holech Kol ha'Yom Kulo'.
What does that mean, and what is the Chidush?

(d) Rebbi Yossi Omer, 'min ha'Minchah u'Lema'alah, Eino Yachol li'Tevol'. How do we reconcile this statement with Rebbi Yossi in our Mishnah, where he holds 'Tevilah bi'Zemanah Mitzvah'?

(a) Our Mishnah forbids asking a non-Jew to extinguish a fire, though it does not require one to tell him to desist, should he volunteer of his own accord to extinguish it.
What is the middle case that we could derive from the Reisha that it is permitted, and from the Seifa, that it is forbidden?

(b) What is the Din in that case?

(c) If a Jewish child comes to extinguish the fire, we stop him. Why is he worse than a gentile?

(a) Why did the mayor's 'fire-brigade' come to extinguish the fire that broke out in Yosef ben Simai's courtyard?

(b)What happened when he stopped them?

(c) How did Yosef acknowledge their efforts?

(d) Was Yosef's reaction necessary?

(a) Why is there no proof from our Mishnah that one is obligated to stop children from transgressing a La'av, even if they do so of their own accord?

(b) Why is one not obligated to stop non-Jews from performimg a Melachah for a Jew under the same circumstances?

(a) The Tana of our Mishnah permits overturning a dish to cover 1. a lamp, to prevent it from setting the beams alight, 2. a child's mess, and 3. a scorpion, to prevent oneself from being stung. What does Rebbi Yehudah say about the last case?

(b) The middle case - of a child's mess - is not telling us any Chidush. Why not?

(c) How does the Gemara therefore establish the Mishnah?

Answers to questions



(a) May one move a dead mouse by its tail (even not via a vessel), from one's living-room, on Shabbos?

(b) The new version of the Mishnah gives the reason for the Heter to remove the chicken's dirt, because of the child, who is playing in the vicinity.
Why is it not permitted anyway, because it is a Graf shel Re'i?

(a) According to Rebbi Shimon, what is the difference (on Shabbos) between all other wild animals and the following five: an Egyptian fly, a hornet from Ninveh, a scorpion from Chadiav, an Israeli snake and a mad dog anywhere?

(b) What will be the Din according to Rebbi Yehudah?

(c) Why is there a difference in this regard, between Rebbi Yehudah and Rebbi Shimon?

(d) How do we now explain Rebbi Yehoshua ben Levi, who says '*Kol* ha'Mazikin Neheragin be'Shabbos'?

(a) What did Rava bar Rav Huna say to the Beraisa expert, who quoted a Beraisa, which read 'ha'Horeg Nechashim ve'Akrabim be'Shabbos, Ein Ru'ach Chasidim Nochah Heimenu'?

(b) Rav Huna (his father) disagrees.
What did Rav Huna say to the man he saw kill a wasp that was not threatening him?

(c) What does the Beraisa say about someone who is threatened by a snake, and who either kills it or doesn't - but survives to tell the tale?

(a) What did Rebbi comment when that Talmid from Nivsi killed the snake that fell into the Beis Hamedrash on Shabbos?

(b) Rebbi Yanai said that he would even kill a hornet, let alone a snake or a scorpion.
Does this prove that when Rebbi said 'Harag Zeh ke'Yotze Bo', he must have meant it as a compliment - to say that the snake met his match (it came to kill, and was killed)?

(c) The Resh Galusa was pressuring Aba bar Morsa for the money that he owed him.
What happened that made him change his mind?

(a) What kind of lamp did Rebbi Chanina allow to be moved on Shabbos - a big one or a small one (and what other condition needed to be met, before this could be permitted)?

(b) He also permitted Keronos shel Beis Rebbi.
What were 'Keronos shel Beis Rebbi', and was he referring to big ones or to small ones?

(c) He also permitted non-Jewish wine with one seal.
What are the two ways of understanding this Heter?

Answers to questions
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