REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous daf Chulin 53
CHULIN 51-54 - sponsored by Dr. Lindsay A. Rosenwald of Lawrence NY, in
honor of his father, David ben Aharon ha'Levy Rosenwald of blessed memory.
(a) What did Rav reply when Rav Kahana asked him ...
(b) How do we interpret ...
- ... whether a cat is Doreis?
- ... whether a weasel is Doreis?
- ... whether a cat and a weasel are Doreis or not?
- ... his first statement?
- ... his second statement?
- ... his third statement?
(a) Rav Ashi asked whether other Tamei birds (besides those mentioned in our
Mishnah) are Doreis or not (seeing as they too, are birds of prey).
did Rav Hillel quote Rav Kahana as having said in this regard?
(b) What problem do we have with that from our Mishnah?
(c) We answer this Kashya in two ways. One answer is that a Netz (a
sparrow-hawk) is Doreis birds the same size as itself, whereas other Tamei
birds are only Doreis birds that are smaller than themselves.
What is the
(a) According to Rav Kahana in the name of Rav Shimi bar Ashi, a fox is not
When Rav Dimi arrived from Eretz Yisrael, what episode did he
relate about a fox and a sheep that took place in the bathhouse of Beis
(b) And what did the Chachamim rule?
(c) How does Rav Safra reconcile Rav Kahana with that?
(d) In the second Lashon, Rav Kahana cited Rav Shimi bar Ashi as saying that
a fox is Doreis.
How does Rav Safra reconcile that with Rav Dimi, who
cited the Chachamim, who rules 'Ein Derusah'? What was he referring to this
(e) What does Rav Yosef say about a dog?
(a) What is Abaye coming to preclude, when he confines Derisah to ...
(b) What third condition does he add for the Derisah to be effective?
- ... the Yad?
- ... a claw?
(c) What is the problem, when he adds 'Ein Derisah Ela me'Chayim'?
(d) How do we interpret 'me'Chayim? What is Abaye coming to teach us?
(a) If a lion enters a herd of oxen and a detached claw from its paw is
discovered in one of the animal's backs, Rabah bar Rav Huna Amar Rav rules
that the ox is not Tereifah.
Why is that?
(b) How do we query Rav's reasoning, based on the fact that most oxen tend
to scratch against walls?
(c) How do we resolve the query? On what other principle of Rav is his first
(a) Abaye qualifies Rav's basic ruling, by differentiating between an actual
claw and a claw-mark (which is Tereifah).
Answers to questions
How does he then qualify ...
(b) Rav holds 'Ein Chosheshin le'Safek Derusah'.
- ... Rav's ruling regarding the claw? When will even an actual claw embedded in the ox's back render it Treifah?
- ... Rav's ruling regarding a claw that is still fresh? When will he declare even wet claws Tereifah?
- ... this latter ruling? Under what circumstances will he declare even five claws embedded in an ox's back, Kasher?
What does Shmuel say?
(c) They both agree that if we are not certain that the lion even entered
the herd, 'Ein Chosheshin' and all the animals are Kasher.
What will they
say in a case where ...
(d) In which case then, do Rav and Shmuel argue?
- ... an animal attacked a flock of lambs and we are not sure whether it was a dog or a cat that attacked them?
- ... a lion entered a herd of oxen, and both the lion and the oxen are silent?
- ... the lion severed the head of one of the oxen?
- ... the lion is roaring and the oxen are lowing?
(a) Like whom does Ameimar rule?
(b) When Rav Ashi asked Ameimar what he did with Rav's opinion, he gave one
of two answers. One of them was that he did not hold like Rav.
What is the
(c) And he supported this with an episode that took place in Neherda'a.
What did Rav do with the basket-full of birds that had been attacked by a
sparrow-hawk that was brought before him?
(d) What did Shmuel subsequently do with them?
(a) How do we try to prove from there that Rav conceded that Shmuel was
(b) How do we counter the retort that if he had retracted, why did he not
simply declare the birds Tereifah?
(c) How does this prove that he retracted? Bearing in mind that Neherda'a
was Shmuel's territory, what would he have done, had he not?
(d) What have we proved, according to the (preferred) text '*Ela* Asra
(a) Why did Shmuel not ...
(b) A goose entered among the canes growing in the river and emerged with
its neck bloodied.
- ... throw the birds into the river as they were? Why did he make a point of breaking their necks first?
- ... leave them for twelve months to see whether they would survive or not (like the Din by Safek Tereifah, as we shall see later), and if they did, declare them Kasher?
- ... sell them to Nochrim?
- ... break their necks and throw them on to the trash-heap?
What was the Safek?
(c) On what basis did Rav Ashi declare it Kasher?
(a) The B'nei Rebbi Chiya require examination of a Derusah's intestines.
What do they mean by 'a Derusah'?
(b) Rav Yosef points out that the B'nei Rebbi Chiya have said nothing new.
In which Tana's name did Shmuel already issue this same ruling?
(c) When Ilfa asked whether 'Yesh Derusah le'Simanim', Rebbi Zeira cited Rav
Chanan bar Rava.
What did Rav Chanan bar Rava say about the examination of
a Derusah? How did that resolve Ilfa's She'eilah?
(a) What did Ilfa mean when he asked 'Simanim she'Nidaldelu be'Kamah'?
(b) Once again, Rebbi Zeira cited others who already dealt with Ilfa's
What did Rabah bar bar Chanah rule in this regard?
(a) This time it was Rav Ami on whom Rebbi Zeira made his comment.
did Rav Ami mean when he asked 'Hismasmah Mahu'?
(b) And it was Rav Yehudah Amar Rav whom Rebbi Zeira quoted.
distinction did Rav Yehudah make between the intestines and the thigh that
(c) How does Rav Huna b'rei de'Rav Yehoshua define 'Nismasmes'? By which
limb for example, would the animal be considered Tereifah?
(d) What did Rav Ashi rule, when a lung was brought before him which seemed
normal whilst it was lying down, but which fell to pieces when they picked
(a) Rav Nachman learns that if a thorn pierces right through to the
abdominal cavity, the animal is Tereifah.
Answers to questions
Why is that? Why do the
intestines not first require Bedikah?
(b) What does he say about a Derusah?
(c) Rav Z'vid agrees with Rav Nachman's latter statement.
What does he say
about Derusas ha'Simanim?
(d) What is the reason for the difference?