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prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem

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Moed Katan 11

MOED KATAN 11, 12 - sponsored by Harav Ari Bergmann of Lawrence, N.Y., out of love for Torah and those who study it.


(a) Rav permitted Chiya bar Ashi to weave a fishing-snare on Chol ha'Mo'ed. Making a net to catch birds on the other hand, is forbidden.
Why is that?

(b) Rav Yehudah permitted Ami the oven-maker, to fabricate ovens from scratch, and Rava Bar Isbi to fabricate sieves.
How do we reconcile this with the Beraisa quoted by Rabah bar Shmuel, which forbids the construction of ovens on Chol ha'Mo'ed?

(a) Under what condition may one ...
  1. ... construct a low parapet in front of the balconies on Chol ha'Mo'ed?
  2. ... cement the cracks in an oven? What is the difference between a Ma'agilah and a Machlatzayim?
  3. ... repair a broken hinge, a hole in which the hinge swivels, a lintel, a lock or a key (of an outer door) on Chol ha'Mo'ed?
  4. ... preserve food?
(b) According to Rav Yosef, a low parapet inexpertly made constitutes a wall made of laurel branches interwoven with Lulav-leaves.
What does the Tana of the Beraisa say?

(c) Having informed us that one may use a wooden roller to cement cracks in an oven, it would not then be necessary for the Tana to permit using one's hands and feet.
How do we therefore amend our Mishnah which currently reads 'u'Ma'agilin Osah be'Ma'agilah, be'Yad u've'Regel'?

(a) The Tana of our Mishnah permits the repair of broken locks and keys ... on Chol ha'Mo'ed.
How do we initially reconcile this with the Mishnah in Ma'aser Sheini, which informs us that Rebbi Yochanan ben Zakai forbade the use of hammers on Chol ha'Mo'ed?

(b) On what grounds do we refute this answer?

(c) Rav Papa establishes our Mishnah before Rebbi Yochanan ben Zakai's decree.
Rav Chisda differentiates between a saw and an ax.
How does this answer differ from the answer in a. that we just refuted?

(d) Rav Ashi answers the Kashya by establishing the Mishnah in Ma'aser Sheini like Rebbi Yehudah, and our Mishnah like Rebbi Yossi.
What does Rebbi Yossi say?

4) The Minhag evolved to fix bolts into the lintel.
With which Tana does this conform?


(a) What happened to many of the fish in the River Bedisa in the town called Laba'i?

(b) On what basis did Abaye object when Rava permitted salting as many fish as they could bring home (even though salting them in this way rendered them unfit to eat until after Yom-Tov)?

(c) On what grounds did Rava justify his ruling?

(d) According to the second Lashon, Rava permitted the people to catch the fish, and they salted them of their own volition. Abaye again objected to the people's actions - on the basis of our Mishnah.
How did Rava justify what they did?

(a) How many times did they have to wash the salted fish before Shmuel and later Rava, could eat them?

(b) What did Rav quote Ada the hunter as saying when he was once served fish that was a third cooked, a third salted and a third roasted?

(c) He also quoted him as saying that fish tastes best when it is roasted with its brother, served with its father, eaten with its son and washed down with its father.
What did he mean by that?

(d) Ada the hunter also told Rav two more useful facts: firstly, that one should not go to bed after eating, before having walked a considerable distance.
What was the second statement?

***** Hadran Alach Mashkin Beis ha'Shalachin *****

Answers to questions


***** Perek Mi she'Hafach *****


(a) What is the meaning and significance of 'Mi she'Hafach es Zeisav'?

(b) If someone 'stirred his olives' and something then happened to prevent him from pressing them before Yom-Tov came in, what would he be permitted to do on Chol ha'Mo'ed?

(c) Will the same concession apply if one hired workers to press his olives and they retracted just before Yom-Tov?

(d) This is the opinion of Rebbi Yehudah. Rebbi Yossi is more lenient. What does *he* say?

(a) What does Rav Shisha B'rei de'Rav Idi deduce from the fact that our Mishnah does not expressly permit someone who became an Aveil to place the first beam on the olives that he has already turned?

(b) What does Rav Ashi say?

(c) In support of which of the two Amora'im do we bring a Beraisa?

(d) Seeing as an Aveil is prohibited from working, what can he do if his olives are in the vat and going to spoil, his open barrel of wine are about to turn sour, his linen to go moldy if it is left to soak any longer or his wool to burn if it remains in the caldron?

(a) What system did they use to water all the fields in a valley?

(b) Rebbi Yehudah permitted sowing a plowed field on Chol ha'Mo'ed or sowing flax seeds on behalf of an Aveil.
On what grounds do the Chachamim disagree with him?

(c) Raban Shimon ben Gamliel is the most lenient of them all.
What does he say?

(d) And what does he say about a professional craftsman whose services are in constant demand, a barber or a bath-attendant?

(a) If an Aris, a Choker or a Kablan become an Aveil. others may do his work for him.
What is ...
  1. ... an Aris?
  2. ... a Choker?
  3. ... a Kablan?
(b) An ass-driver, a camel-driver or a sailor who became an Aveil are forbidden to accept a new contract.
May they complete a contract that they accepted before they became an Aveil?

(c) Why does the Tana of the Beraisa not require others to complete the work for him like he said earlier with regard to working in the field?

(d) 'A S'chir-Yom is forbidden to work even if he became an Aveil *after* he began working that day, even in another town'.
Why is a S'chir Yom worse (in this regard) than the workers mentioned previously? What is the significance of the statement 'even in another town'?

(a) If someone handed an Aveil work to do at home, he is forbidden to do it. Why is that? Does it make any difference whether he gets paid per job or per day?

(b) Under what condition may someone wh is employed by an Aveil to do work for him - do it?

(a) Meryon the son of Ravin and Mar the son of Rav Acha B'rei de'Rava paired their oxen to plow together in the field.
What did the latter do when he became an Aveil?

(b) What did Rav Ashi comment on that?

(c) How do we nevertheless justify Mar the son of Rav Acha B'rei de'Rava?

Answers to questions

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