ANSWERS TO REVIEW QUESTIONS
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafEruvin 68
(a) The reason that Rabah and Abaye's Mavoy had neither a Shituf Mavu'os nor
an Eruv Chatzeros was because the great Rabah could not be expected to run
around the Mavoy collecting bread for an Eruv, Abaye was so involved in his
learning that he simply had no time to do it, and other residents of the
Mavoy did not care sufficiently to get involved.
(b) Abaye did not donate a loaf of his own on behalf of the other residents
of the Mavoy - because he could not afford to give it to them should they
ask for it, and we have already learnt above, that bread which the owner is
not prepared to give to any of those participating in the Eruv does not
qualify as an Eruv.
(c) Nor could he simply designate one Revi'is in a barrel of vinegar -
because Abaye holds 'Ein Bereirah', and this constitutes Bereirah.
(a) A corpse in the house render all the windows Tamei, too - provided they
are at least one Tefach by one Tefach.
(b) The vessels are not necessarily Tamei anyway because of Ohel ha'Mes,
since we are speaking even in a case when they are not under the same Ohel -
nevertheless, it is a Halachah le'Moshe mi'Sinai that any doorways or
windows through which the corpse may pass are Tamei (unless one of them is
(c) If all the doorways are closed, and one of them is opened, or if all the
doorways are *less* than four by four Tefachim, and one of them is *more,*
then *it* is Tamei, and all the other ones remain Tahor.
(a) According to Beis Shamai, Machshavah will not help *after* the man has
died - because once Tum'ah descends on the doorways, it will only leave
through an act (e.g. opening one of the doorways and all the rest are
closed), but not through Machshavah, because 'Ein Machshavah Motzi mi'Yedei
(b) However, vessels that were placed under one of the other doorways
*after* the Machshavah - remain Tahor.
(c) According to Beis Hillel - Machshavah helps retroactively even after the
pe rson dies - even with regard to vessels that were there before the
Machshavah (because they hold 'Yesh Bereirah').
(d) Abaye in 1c who says 'Ein Bereirah' holds like Beis Shamai.
(a) Rava told them to ask the mother whether she needed hot water for
herself. If she did, then they would be able ask a gentile to heat some
water for her, and at the same time, for her baby too.
(b) The mother is only considered in a state of danger during the first
seven days. From seven until thirty days, we believe her only to the point
of permitting a non-Jew to prepare her needs for her, but not a Jew,
(c) If the mother was eating dates, and not hot foods, Rav Mesharshaya
pointed out, it was clear that she did need hot foods?
(d) Rava replied that she was in a hazy frame of mind, and did not quite
know what she was doing?
(a) Rava had his vessels moved from the men's chambers (which had entrances
to the courtyard) to the women's (which did not). Then he was Mevatel his
Reshus from the Chatzer, thereby permitting the hot water to be carried from
there to the Chatzer where the baby was.
(b) Moving his vessels from the men's Chatzer to the women's - was to ensure
that he would not (inadvertently) carry them out into the Chatzer, as that
would negate the Bitul that he had just made.
(c) Rava follows the opinion of Rebbi Yochanan, who holds that Bitul Reshus
helps from one courtyard to another.
(a) Ravina asked Rava - that, since he held like Rebbi Yochanan (who holds
that 'Yesh Bitul Reshus me'Chatzer le'Chatzer'), he could have dispensed
with the need to move his vessels to the ladies' chambers, by being Mevatel
his Reshus to the residents of the Chatzer where the baby was for the time
that was needed to transport the hot water there. After that, they could
have been Mevatel it, enabling him to re-acquire it, so to speak?
(b) If Rava held like Shmuel ('Ein Mevatlin ve'Chozrin u'Mevatlin'), Ravina
maintained, then he must hold that he has removed himself from his Chatzer
completely for that day (to become like a resident in another Chatzer). But
surely the reason for *that* is of (Shmuel's other Din:) 'Ein . So how can
Rava hold 'Yesh Bitul Reshus me'Chatzer le'Chatzer'?
(c) Shmuel's real reason for saying 'Ein Mevatlin ve'Chozrin u'Mevatlin' -
answered Rava - is because to do so makes a mockery of the Takanah of Bitul
(and not because of 'Ein Bitul Reshus me'Chatzer le'Chatzer').
(a) The Gemara thinks that Rav says 'Mevatlin ve'Chozrin u'Mevatlin' -
because, in his opinion, even after Bitul, the owner still retains some
ownership over his original residence. This conforms with the opinion of the
Rabbanan, who forbid the other residents to carry from the house of the one
who was Mevatel Reshus for the very same reason (because he still retains
ownership of his house); Consequently Shmuel, who holds 'Ein Mevatlin
ve'Chozrin u'Mevatlin' - will follow the opinion of Rebbi Eliezer (because
they both hold that the owner relinquishes his ownership completely, when he
(b) In fact, Rebbi Eliezer could well agree with Rav (that even after Bitul
in the Chatzer, the owner still retains, or at least, leaves himself the
option of retaining, some ownership over his original residence) - he
maintains however, that a person does not usually live in a house without a
Chatzer (which is why Bitul Reshus of the Chatzer extends to the house).
(c) The Rabbanan, on the other hand, may well hold that Bitul on the Chatzer
does not necessarily mean Bitul on the house. However, from whatever he *is*
Mevatel his Reshus, that Bitul is total (like Shmuel).
The Gemara amends the Mishnah to read - 'Tzedoki, Harei Hu ke'Nochri.
ve'Rabban Gamliel Omer, Tzedoki Eino ke'Nochri'.
1. Rebbi Meir forbids the other residents to continue carrying if the
Mevatel subsequently carries out from his house into the Chatzer, even
be'Shogeg - because he holds that he still retains ownership of his portion
in the Chatzer - like Rav, who holds 'Mevatlin ve'Chozrin u'Mevatlin'.
(b) If he carried out be'Mezid, then both Tana'im will agree that, since the
Mevatel expressly intended to re-acquire ownership, he does indeed re-
acquire it. Strictly speaking, when he carries his vessels into the Chatzer
be'Shogeg, it ought to have no effect at all (since, initially, he
completely relinquished his ownership); and that is the opinion of Rebbi
Yehudah. Rebbi Meir however, holds, that they gave Shogeg the Din of Mezid
in this case, and forbade the other residents to continue carrying there.
2. Rebbi Yehudah permits them to carry (if he took out the vessels
be'Shogeg), because he maintains that the Mevatel does not retain ownership
- like Shmuel who holds 'Ein Mevatlin ve'Chozrin u'Mevatlin'.
(c) The other residents could prevent the Mevatel from re-acquiring his
rights in the Chatzer - by making a Chazakah i.e. using the Chatzer first.