Commentary for Eruvin 76:22

א"ל רבה בר רב חנין לאביי אי הוה שמיע ליה למר הא דתניא לא יהלך אדם לסוף שדהו לידע מה היא צריכה כיוצא בו

[What], however, [is your explanation of] what we learned: R'ELIEZER RULED: IF A FESTIVAL DAY IMMEDIATELY PRECEDES OR FOLLOWS THE SABBATH A MAN MAY PREPARE TWO 'ERUBS? '<span class="x" onmousemove="('comment',' It is now assumed that one 'erub is laid at a distance of' two thousand cubits from the town in one direction and the other at an equal distance in the opposite direction.');">³³</span> Is it not necessary [that the 'erub should consist of] a meal suitable [for consumption] while it is yet day,<span class="x" onmousemove="('comment',' Friday.');">³¹</span> which is not the case here?<span class="x" onmousemove="('comment',' Since the effectiveness of the 'erub for the first day prevents the man for whom it was prepared from walking one single step in the opposite direction of the town (cf. previous note) in consequence of which he is unable, while it is yet day, to gain access to his second 'erub.');">³⁴</span> - Do you think that one 'erub was laid at the termination of two thousand cubits in one direction<span class="x" onmousemove="('comment',' Lit., 'towards here'.');">³⁵</span> and [the other was laid] at the termination of two thousand cubits in the opposite direction?<span class="x" onmousemove="('comment',' Cf. Supra p. 265, n. 9.');">³⁶</span> No; one 'erub was laid at the termination of one thousand cubits in one direction and [the other also was similarly laid at] the termination of one thousand cubits in the opposite direction.<span class="x" onmousemove="('comment',' So that either 'erub is within two thousand cubits distance from the other, and the man is consequently able to gain access to the 'erub he requires.');">³⁷</span> [What,] however, [could be said in explanation of] that which Rab Judah ruled: If a man prepared an 'erub for the first day with his feet he must also prepare it for the second day with his feet and if he prepared the 'erub for the first day with bread he must also prepare it for the second day with bread? Is he not<span class="x" onmousemove="('comment',' When preparing the 'erub with his feet.');">³⁸</span> preparing on a festival day for the Sabbath?<span class="x" onmousemove="('comment',' Granted that in the case of an 'erub with bread, since validity takes effect at the beginning of the day for which it is prepared, there is, as has been explained supra, no preparation from the festival for the Sabbath' in the case of an 'erub prepared with one's feet, however, since the man cannot exactly determine the moment at which the Sabbath begins, he would obviously pronounce the formula, whereby he acquires the spot as his abode, while it is yet day and thus he would be guilty of preparing on a festival for the Sabbath.');">³⁹</span> - The other replied: Do you think that he must go [to the required spot] and pronounce some formula? In fact he only goes there and sits down in silence. In agreement with whose view?<span class="x" onmousemove="('comment',' Is this ruling that no formula is necessary for acquiring a spot as one's 'abode' for a Sabbath or festival.');">⁴⁰</span> Is it in agreement only with that of R'Johanan B'Nuri who holds that objects of hefker<span class="x" onmousemove="('comment',' V. Glos. though they are ownerless and no one acquires the place for them.');">⁴¹</span> acquire<span class="x" onmousemove="('comment',' Like a sleeping person (cf. infra 45a) .');">⁴²</span> the spot on which they rested?<span class="x" onmousemove="('comment',' At the moment the Sabbath or festival began.');">⁴³</span> - It may be said to be in agreement even with the view of the Rabbis, for they differ from R'Johanan B'Nuri only in respect of a person asleep, who cannot possibly pronounce the formula, but where a person is awake and could, if he wished, pronounce it he is deemed to have pronounced it even though he has not actually done so. Said Rabbah B'R'Hanin to Abaye: If the Master<span class="x" onmousemove="('comment',' Rabbah, who tacitly assumed that a man may take a walk on a holy day though his motive is to facilitate thereby some work which is forbidden on that day'.');">⁴⁴</span> had heard that<span class="x" onmousemove="('comment',' Lit., 'that which'.');">⁴⁵</span> it was taught: 'A man shall not walk [on the Sabbath] to the end of his field to ascertain what it required.<span class="x" onmousemove="('comment',' Though his intention is to attend to the work after the conclusion of the Sabbath.');">⁴⁶</span> Similarly

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