POINT BY POINT SUMMARY
Prepared by R. Yakov Blinder
of Kollel Iyun Hadaf, Yerushalayim
Rosh Kollel: Rabbi Mordecai Kornfeld
Ask A Question on the daf
Previous daf 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.
(e) Rav permitted to make simple nets (for fish) on C.H., but
not fancy nets for catching birds, because the latter is
a professional task.
1) MISHNAH - OF BANISTERS, CRACKS, DOOR REPAIRS AND PICKLES ON C.H.
(f) R. Yehudah permitted to build an oven (in a
non-professional manner) and to make sieves.
1. Question: A Beraisa says that everyone agrees that one
may not build an oven.
2. Answer: On C.H.Sukkos, when the weather is cool and
sometimes rainy, it is forbidden to make an oven,
because it will not dry out in time for the holiday.
On C.H. Pesach, when it is sunnier, it is permitted.
(a) One may make a banister for a roof or balcony, but only
in a non-professional manner.
2) GEMARA - DEFINITON OF "NON-PROFESSIONAL" IN MISHNAH, 1:a
(b) Cracks (of an oven floor - Rashi; of a rooftop - others)
may be repaired with a roller or by hand or foot, but not
with a Mechlatzayim (a professional tool).
(c) Hinges, sockets, lintels, locks and keys may be repaired
on C.H., provided the repair was not intentionally left
(d) Preserves (pickled foods, etc.) may be made only if they
will be ready before the holiday is over.
(a) Question: What is a "non-professionally" built banister?
3) CLARIFICATION OF 1:b
(b) Rav Yosef's answer: Making a makeshift fence of bay
branches and palm leaves.
(c) Beraisa's answer: Placing rocks without mortar.
(a) Question: If a roller may be used, then it goes without
saying that it may be done with the hand or foot. So why
are hand and foot mentioned?
4) DISCUSSION OF 1:c
(b) Answer: Actually a roller is forbidden. What the Mishnah
means to say is: One may use only his hand and foot and
through them attain the same effect as a roller.
(a) Question: A Mishnah elsewhere says that Yochanan Kohen
Gadol put an end to the sound of the hammer on C.H. Why,
then, does the Mishnah permit these repairs?
5) A DISCUSSION OF PICKLING ON C.H.
(b) Answer 1: Yochanan Kohen Gadol abolished only noisy
banging, as against metal; the Mishnah is dealing with
hammering against wood, which isn't so noisy.
(c) This is rejected, because it is difficult to say that
some kinds of hammer noise are permitted and others
(d) Answer 2 (R. Chisda): The repairs spoken of in the
Mishnah are talking about repairs done with a Magal
(which is permitted because it makes no noise at all -
Rashi; or because it is an unusual way [Shinui] to do
these repairs - others).
(e) Answer 3 (R.Papa): The Mishnah predates the Takkanah of
Yochanan Kohen Gadol.
(f) Answer 4 (R. Ashi): The Mishnah about Yochanan Kohen
Gadol holds like R. Yehudah (see below, 11b, #1, and 12a,
#5), who requires Shinui when doing a Melachah on C.H.;
our Mishnah holds like R. Yosi who does not require a
Shinui (if it's a Davar Ha'aved).
(g) Ravina: Since we are accustomed to banging in nails in
doorframes without a Shinui on C.H., we obviously hold
like R. Yosi.
(a) First version of the story of the Badisa river.
1. One time the river overflowed, leaving many fish
around, which the people went to gather up. Rava
permitted them to pickle them.
(b) Second version:
2. Question: The Mishnah forbids pickling except for the
holiday; here the pickling will not be ready for a
3. Answer: It is permitted anyway, because since the fish
were already acquired, it would be a great loss if
they could not be preserved.
1. Rava permitted the people to go take the fish in the
first place, and then pickle them.
(c) Here the Gemara digresses into a discussion of various
matters concerning the eating of fish.
2. Question: As above, 5:a:2.
3. Answer: It is possible to eat pickled fish even before
the pickling process is finished, by rinsing the
fish many, many times. Thus, it is in fact possible
to partake of them during the holiday.
*****PEREK #2 MISHE'HAFACH*****
6) MISHNAH - ARGUMENT BETWEEN R. YEHUDAH AND R. YOSI
(a) If someone turned his olives over to prepare for pressing
(and they will spoil if not pressed quickly), but he was
unable to press them because he became a mourner or
because his workers didn't show up or some other good
excuse, R. Yehudah says he may do the minimum pressing to
prevent the loss of the olives, and leave the rest for
7) GEMARA - DISAGREEMENT OVER INTERPRETATION OF MISHNAH
(b) R. Yosi says the entire process may be followed as usual.
(Because once something is a Davar Ha'aved R. Yosi
permits doing Melachah in the usual manner, without
(a) The Mishnah says that the person was unable to press his
olives because he became a mourner; in this case he is
permitted to press them when C.H. arrives, because it is
a Davar Ha'aved. R. Sheisha Breih Derav Idi infers from
here that during the days of mourning Davar Ha'aved is
(b) Rav Ashi says that if Davar Ha'aved is permitted on C.H.,
which is Mid'oraisa, then certainly it is permitted for
the mourning period, which is Mi'derabanan. The reason
the Mishnah doesn't mention it is that it's obvious.
(c) There is a Beraisa that concurs with R. Sheisha's
opinion. The Beraisa makes several points about the laws
of mourners doing work:
1. If a mourner's olives urgently need pressing, others
(but not he himself) may do it for him. The same is
true for other cases of Davar Ha'aved. (This is the
statement that proves R. Sheisha's opinion.)
2. Rabban Shimon ben Gamliel: If there is no one else who
can do the job the mourner can do it himself, in
(d) A story: Mar Breih etc. had a partnership with Marion
Breih etc. in a pair of oxen. Once he became a mourner
and did not let his ox go to work, thus causing a loss to
his partner Marion, who could not manage with one ox.
3. Rabban Shimon ben Gamliel: If the mourner is a
professional whom the public needs (and there is no
one else who can do his work) he may do his work.
4. If the mourner is a sharecropper or tenant-worker in a
field, others should take his place in doing his
farm work (to prevent loss to the field's owner).
5. A mourner who owns a moving company (he's a
donkey-driver, a shipper, etc.) should not accept a
new job, but if he already has an obligation from
beforehand he can do it (to prevent loss to the
6. A worker who is paid by the day, if he becomes a
mourner, should not work.
7. If the mourner does work for others in his own home
(tailor, launderer, dyer, etc.), whether by contract
or by the hour, he should not work.
8. If the mourner is having others do work for him in his
house (e.g., renovations) they must not work. (But
if their work is done elsewhere it's OK.)
1. Question: This contradicts 2:c:5, which says that a
mourner may work if his refraining from work would
cause a loss to others.
2. Answer: Mar held that an important rabbi such as
himself sometimes has to avoid leniencies that the
halachah technically permits (lest others learn from
his actions to be even more lenient).