POINT BY POINT SUMMARY
by Rabbi Ephraim Becker
Kollel Iyun Hadaf, Yerushalayim
Rosh Kollel: Rabbi Mordecai Kornfeld
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Previous dafSukah 7
1) THE TEFACH OF THE THIRD WALL WHEN TWO WALLS ARE PERPENDICULAR
(a) Question: Where (according to the Rabanan) would we place
the Tefach constituting the third wall?
2) THE THIRD WALL WHEN TWO WALLS ARE PARALLEL
(b) Answer (Rav): The Tefach is placed at a right angle, at
either end of the "L" created by the first two walls.
1. Question (R. Kahana and R. Asi): It should be placed at
an angle (45 degrees) into the "L" (giving the
appearance of closing the Sukah)!?
(c) Answer (R. Simon, or, R. Yehoshua b. Levi): The Tefach is a
generous Tefach and it is placed just under three Tefachim
from the end of the L (making a Lavud wall of four Tefachim,
the majority of a seven-Tefach wall).
2. Answer: Rav was silent (indicating his non-acceptance -
3. Levi was cited (by Shmuel) as ruling like Rav.
(a) (R. Yehudah) The Sukah is Kosher if made from two parallel
walls (like a Mavui Mefulash) with the additional Tefach
placed at any end.
3) RAVA'S QUALIFICATIONS FOR THE TEFACH ADDED TO TWO KOSHER WALLS
(b) (R. Simon, or, R. Yehoshua b. Levi) Such a Sukah requires a
board slightly larger than four Tefachim, placed within
three Tefachim of the end of one of the parallel walls.
(c) Question: Why, when the walls were perpendicular, a generous
Tefach was sufficient, and now you require four Tefachim?
(d) Answer: The perpendicular walls create two proper walls (and
the small addition is sufficient), whereas parallel walls
are not Kosher, and Rov Dofen is needed to be Machshir.
(a) (Rava-First Rendition) The additional Tefach must be placed
in the form of a Tzuras HaPesach (a half-Tefach board on
each end of a seven-Tefach-wide Tzuras HaPesach, connected
above -Rashi D"H Amar Rava).
4) SUKAH AND SHABBOS
(b) (Rava-Second Rendition) A substitute for the additional
Tefach could be a seven-Tefach-wide Tzuras HaPesach, even
without a total of a Tefach-width.
(c) (Rava-Third Rendition) In addition to the Tefach, we require
a seven-Tefach-wide Tzuras HaPesach.
(d) R. Kehana made a Sukah using a generous Tefach within three
Tefachim, in addition to a Tzuras HaPesach.
(e) Question (R. Ashi): But Rava said that either a Tefach or a
Tzuras HaPesach will suffice!?
(f) Answer (R. Kehana): I hold like the third rendition of Rava.
(a) (Rabah or Rava) Since (Migo) we see the additional Tefach as
constituting a wall for Sukah, it would also be considered a
wall for the purposes of carrying on Shabbos.
(b) Question (Abaye): But the Beraisa teaches that the Halachos
of Shabbos during Sukos are *more Chamur* than the Halachos
of Sukah the rest of the week!?
1. The Beraisa says that walls are created for Sukah the
same way that they are created for Shabbos.
(c) Answer: The Beraisa means that Shabbasos *other* than the
Shabbos of Sukos have this Chumrah.
2. A Lavud wall (made of ropes with less than a three-
Tefach space in between) is thus Kosher.
3. Shabbos has the Chumrah that we require that the Omed
exceed the Parutz, which we do not require for Sukah
(since we allow the absence of all of the fourth and
most of the third walls).
4. We see that we not *not* call any Kosher Sukah as
enclosed for the purposes of the Shabbos of Sukos!?
(d) Question: Then the Beraisa should have listed a Chumrah of
the general Hilchos Sukah over the Sukah of Shabbos in that
a Sukah requires a generous Tefach as a third wall whereas
you (if Abaye is speaking with Rava, but Mar, if it is Abaye
speaking to his Rebbi, Rabah) only require a Lechi, and not
a Tefach, at the opening of the Mavui Mefulash!?
(e) Answer: It is unnecessary to point that out since we already
apply the Migo to permit a Sukah wall on Shabbos, it goes
without saying that we permit a Sukah owing to its validity
5) PUTTING S'CHACH ON A LECHI-OUTFITTED MAVUI MEFULASH
(a) Rabah (or Rava) also taught that we could put S'chach on the
four posts around a public well (Pasei Biraos).
6) A SUKAH WHOSE LIGHT IS MORE THAN ITS SHADE
(b) Each of these Halachos are needed:
1. Had we been taught only the Hechsher of a Lechi-
equipped Mavui we might have attributed the Heter to
the presence of two proper (though parallel) walls, but
not applied the Heter where there are no actual walls.
2. Had we been taught only Pasei Biraos we might have
attributed the Heter to the existence of *four* walls
(albeit only Halachic ones) and not applied the Heter
where we do not call it a four-walled enclosure.
3. Had we been taught both of these, but not the blanket
rule above that anything which constitutes a wall for
Sukah is deemed a wall for Shabbos, we might only have
applied the Heter from Shabbos (which is more Chamur)
to Sukah, and not the reverse.
(a) Beraisa (Rabanan): If the light that comes in through the
walls (such as through gaps or windows) is more than the
shade, the Sukah is Kosher; the Sukah is Pasul only when the
light coming through the S'chach is more than the shade.
7) THE TANA'IM WHO HOLD THAT A SUKAH IS A DIRAS KEVA
(b) (R. Yoshiyah) Even light coming through the sides will
invalidate the Sukah.
(c) Question: What is R. Yoshiyah's reason?
(d) Answer: It is written, "You shall cover (v'Sachosa) the Aron
with the Paroches."
1. The Paroches is a partition and yet the Torah calls it
(e) Question: How do the Rabanan respond?
2. Therefore, the partition must be like the S'chach (and
not let more light than shade into the Sukah).
(f) Answer: The Torah calls the Paroches "S'chach" because its
edges extended slightly over the side of the Aron and had
the appearance of S'chach.
(a) (Abaye) Rebbi, R. Yoshiyah, R. Yehudah, R. Shimon, R.
Gamliel, Beis Shamai, R. Eliezer, and Acherim all hold that
a Sukah must be a Diras Keva.
1. Rebbi says (Beraisa) that any Sukah which is not 4x4
Amos is Pasul.
2. R. Yoshiyah, as we learned above (in the Beraisa, 1.a.)
3. R. Yehudah says (Mishnah) that a Sukah taller than 20
Amos is Kosher.
4. R. Shimon says (Beraisa) that three of the Sukah's
walls must be of proper size, but the fourth may be
even one Tefach wide.
5. R. Gamliel says (Beraisa) that a Sukah made atop a
wagon or a boat is Pasul.
6. Beis Shamai says (Beraisa) that one whose head and most
of his body were in the Sukah but his table was in the
house did not fulfill the Mitzvah.
7. R. Eliezer says (Mishnah) that a Sukah made like a tent
(the roof of which also serves as the walls) or a Sukah
made by leaning the branches of the S'chach against a
wall (forming a shelter underneath) is Pasul, because
it has no actual roof.
8. Acherim say (Beraisa) that a Sukah made like a bird
coop (i.e. round) is Pasul, because it does not have