REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous daf Bava Basra 18
BAVA BASRA 18 (25 Nisan) - dedicated by Sandy and Les Wiesel in memory of
Les's father, Menachem Yehuda ben Avigdor Yosef Wiesel, who perished in the
(a) If as Rava explains, our Mishnah is speaking even when the neighbor has
not yet built a wall, what is the Tana coming to teach us when he rules ...
(b) The Mishnah later forbids Reuven to open a bakery, a dyeing-shop or a
stable underneath Shimon's storehouse, implying that he would be permitted
to do so, if the storehouse was not yet there.
- ... 'Marchikin es ha'Geffes ve'es ha'Zevel ... mi'Koslo shel Chavero Sheloshah Tefachim ... '?
- ... 'Marchikim es ha'Zera'im ve'es ha'Machrishah ... min ha'Kosel Sheloshah Tefachim ... '?
- ... 've'es ha'Rechayim Sheloshah ... ', 've'es ha'Tanur Sheloshah ... '?
How will Rava explain this
(c) What does the Mishnah add there with regard to a stable, that bears this
(a) The Mishnah later forbids Reuven to plant a tree within four Amos of
Shimon's field. What reason does the Beraisa give for this? What purpose
do those four Amos serve according to the Tana of the Beraisa?
(b) Why, according to Rava, is it not forbidden anyway, because of the roots
of Reuven's tree that will spread into Shimon's field and damage his plants?
(c) The Mishnah later permits Reuven and Shimon to plant trees right up to
the wall that divides their fields, dispensing with the Isur of Kil'ayim.
Why are we not concerned about the roots of Reuven's tree that will grow
under the wall into Shimon's field?
(d) In that case, how can the Tana say in the Seifa 'Hayu Sharashav Yotz'in
be'Toch shel Chavero, Ma'amik Sheloshah Tefachim'? How did the roots cross
the strip of rocky terrain?
(a) The Mishnah later teaches 'Marchikin es ha'Ilan min ha'Bor
If, as Rava explains, the Tana speaks even when
there is no pit as yet in the second field, then what is the Tana coming to
(b) If planting the tree is prohibited even before the pit exists, how will
we explain the Seifa 've'Im Ilan Kadam, Lo Yikotz'.
How did the tree get
(a) The Tana Kama there states 'Marchikin es ha'Mishrah min ha'Yerek ... ',
implying that if there would be no vegetables, it would be permitted to
place the soaking-house next to his neighbor's field.
Answers to questions
How does Rava
explain this Mishnah?
(b) Why does the Tana Kama forbid Reuven to plant his mustard-seeds next to
(c) On what grounds does Rebbi Yossi permit it?
(d) But if - as Rava explains, the Mishnah is speaking even before Shimon
opened his aviary there (since it is forbidden to place a potential Mazik
close to the Nizak's Reshus in anticipation of the Nizak pacing his article
there), what does Rebbi Yossi mean? How can Reuven plant his mustard-seeds
close to the place where Shimon might later place his aviary?
(a) Seeing as Rav Papa just established the Machlokes between Rebbi Yossi
and the Rabbanan (with regard to the mustard-seeds and the bees) when Reuven
sold Shimon half the field only after he had planted his mustard-seeds, on
what grounds do the Rabbanan obligate Reuven to move his mustard-seeds?
(b) What problem do we have with attributing Rebbi Yossi's ruling to the
S'vara 'al ha'Nizak Le'harchik es Atzmo min ha'Mazik'?
(c) So we assume that Rebbi Yossi too, holds 'al ha'Mazik Le'harchik es
Atzmo min ha'Nizak'.
Then why does Rebbi Yossi differentiate between the
soaking-house and the vegetables (where he concedes to the Rabbanan) and the
mustard-seeds and the bees, where he argues with them?
(d) How do the Rabbanan counter Rebbi Yossi's argument? What do they say
- ... the mustard-seeds?
- ... the leaves of the mustard plant?
(a) What does Rebbi Yossi say about a case where Reuven plants a tree within
twenty-five Amos of Shimon's pit?
Answers to questions
(b) What conclusion can we draw from there?
(c) Then how do we reconcile Rebbi Yossi regarding the mustard-seeds and the
bees with this latter ruling of his?