REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous daf Bava Basra 27
BAVA BASRA 27 & 28 - these Dafim have been dedicated anonymously l'Iluy
Nishmas Tzirel Nechamah bas Tuvya Yehudah.
(a) We then suggest that the source for Ula's referring to Reuven's tree
(which grows within sixteen Amos of Shimon's field) as 'a thieving tree' and
exempting it from Bikurim, is perhaps another Mishnah in Shevi'is.
does the Mishnah say there about three fully-grown trees belonging to three
people which is planted in the form of a triangle in an area of a
(b) What area of land does each tree then require to feed?
(c) Considering that the difference between this Shiur and that of Ula is
close, what makes us initially refute the suggestion that this Mishnah is
Ula's source, only Ula gave an approximate Shiur (sixteen Amos per tree [in
one direction, half the square root of 1024], instead of half the square
root of 833 1/3, which would be just under fifteen Amos)?
(a) What misunderstanding have we been guilty of in Ula's Shiur of sixteen
Amos that created the current discrepancy with the Mishnah?
(b) Based on the principle that a circle is a third less than a square, what
is now the area required by a tree in which to feed from the ground?
(c) We finally reconcile Ula with this Mishnah, despite the small
How much discrepancy is there between Ula and the Mishnah,
and how do we justify it?
(a) How will Ula explain the Mishnah in Bikurim 'ha'Koneh Ilan *ve'Karka'o*,
(b) The Mishnah later in 'ha'Mocher es ha'Sefinah' rules 'ha'Koneh Sh'tei
Ilanos be'Soch shel Chavero, Meivi ve'Eino Korei'.
Why is that?
(c) What do we extrapolate from there with regard to someone who purchases
(d) And how will Ula explain that Mishnah?
(a) And what does Rebbi Akiva in the Mishnah in Pe'ah say is Chayav Pe'ah
and Bikurim, and can be used as a P'ruzbul?
(b) What is a P'ruzbul? Who has to own the land?
(a) Which is the fourth case that the Tana in the previous Mishnah includes
in the Din of 'Kol she'Hu'?
Answers to questions
(b) How do we interpret 'Karka Kol she'Hu', to reconcile Ula with this
(c) How do we prove this answer from the Lashon of the Mishnah itself?
(a) If a tree is growing half in Eretz Yisrael and half in Chutz la'Aretz,
Rebbi, in a Beraisa, rules that Tevel and Chulin are mixed together.
does Raban Shimon ben Gamliel say?
(b) What is the basis of their Machlokes?
(c) Why does this Beraisa pose a Kashya on Ula?
(d) How do we establish the Beraisa, to reconcile it with Ula?
(a) If, as we just explained, the Beraisa speaks when there is a rock that
divides between the roots on either side of the tree, then why does Rebbi
say 'Tevel ve'Chulin Me'uravin Zeh ba'Zeh'?
(b) What is then the S'vara of Raban Shimon ben Gamliel?
(c) And how does Abaye reconcile Ula with the Mishnah that we learned
earlier 'Marchikin es ha'Ilan min ha'Bor Esrim-ve'Chamesh Amah'?
(a) Rav Dimi quoted Resh Lakish as having asked Rebbi Yochanan what the Din
will be if Reuven's tree is growing within sixteen Amos of Shimon's field,
with regard to Bikurim.
What did Rebbi Yochanan reply?
(b) How did Ravin quote Rebbi Yochanan?
(c) What is the reason for that? Does he disagree with Ula's principle that
a tree nurtures up to a distance of sixteen Amos?
(d) And what did Rebbi Yochanan say about the branches of Reuven's tree
that project over Shimon's field, according to Ravin?
(a) What authority does our Mishnah grant to Shimon with regard to branches
from Reuven's tree that project over his field?
(b) And what does the Tana say in the case of ...
(c) What is a Mishkoles?
- ... the branches of Reuven's carob or sycamore tree whose branches project over Shimon's field? Why is that?
- ... the branches of Reuven's tree whose branches project over Shimon's Beis-ha'Shalachin (a field that needs to be constantly watered)? Why is that?
(d) And what does Aba Shaul say about any non fruit-bearing tree?
(a) We ask whether Aba Shaul refers to the Reisha or the Seifa. According to
the first side of the She'eilah, Aba Shaul permits Shimon to do with any non
fruit-bearing tree, what the Tana Kama permits him to do to a carob or
What does he hold according to the second side of the
(b) What is the major difference between the two sides of the She'eilah?
(c) And we resolve the She'eilah from a Beraisa.
What does Aba Shaul say
in the Beraisa?
(d) How does Rav Ashi prove this from the words of the Mishnah ('Kol Ilan
S'rak ke'Neged ha'Mishkoles')?
(a) The Tana Kama orders Reuven to cut the branches of his tree that project
over the street, up to the height of a camel and its rider.
Rebbi Yehudah say?
(b) Rebbi Shimon's opinion is the most stringent of all.
What does he say?
(c) What do we mean when we establish that our Mishnah holds that when it
comes to Nizakin, we assess things as they are now? What is the alternative?
(a) Resh Lakish connects our Mishnah with the opinion of Rebbi Eliezer in
the Mishnah in Chezkas ha'Batim.
Under what condition does he permit
digging a hole underneath the Reshus ha'Rabim?
(b) What does the Tana Kama say?
(c) What is the basis of their Machlokes?
(d) Rebbi Yochanan establishes our Mishnah even like the Chachamim.
might the Chachamim concede that, in our Mishnah, we make only a short-term
assessment (without taking into account the long-term damages)?
(a) The Tana Kama and Rebbi Yehudah argue over whether Reuven must cut off
the branches of his tree that project over the street, up to the height of a
camel and its rider or up to the height of a camel laden with flax or with
bundles of branches.
***** Hadran Alach 'Lo Yachpor' *****
How do we prove that the Shiur of the Rabbanan must
be higher than that of Rebbi Yehudah?
(b) Why do we not ask in the same way what a rider will now do according to
(c) Rebbi Shimon in the Mishnah permits cutting down all the branches
because of Tum'ah, which the Beraisa interprets to mean because of Ohel
What does he mean by that?
(d) What else might our Mishnah have meant?
(e) What is the Halachic difference between the two explanations? In which
case will the one apply but not the other?
Answers to questions