This also is the view of R. Simeon. The Sages, however, ruled: The three courtyards are forbidden access to one another’. It was taught in agreement with the view which Rab Judah had from Samuel: R. Simeon remarked: To what may this be compared? To three courtyards that open one into the other and also into a public domain, where, if the two outer ones made an ‘erub with the middle one, the residents of each of the two may bring food from their houses [into the middle one] and eat it there and then they may carry back any remnants to their houses; but the Sages ruled: The three courtyards are forbidden access to one another. Samuel in fact follows a view he expressed elsewhere. For Samuel laid down: In the case of a courtyard between two alleys the residents of the former, though they made an ‘erub with the residents of both alleys, are nevertheless forbidden access to either. If they made no ‘erub with either, they cause the movement of objects to be forbidden in both alleys. If they were in the habit of using one of the alleys but were not in the habit of using the other the movement of objects is forbidden in the one which they were in the habit of using but permitted in the one which they were not in the habit of using. Rabbah son of R. Huna ruled: If [the middle courtyard] made an erub with the alley which it was not in the habit of using, the one which it was in the habit of using is permitted to make an ‘erub on its own. Rabbah son of R. Huna further stated in the name of Samuel: If [the alley] which it was in the habit of using made an ‘erub on its own while the one which it was not in the habit of using made no ‘erub on its own, and [the middle courtyard] itself made no ‘erub with either, its is referred to the one which it was not in the habit of using; for in such circumstances one may be compelled not to act after the manner of Sodom. Rab Judah laid down in the name of Samuel: If a man is particular about his [share in an] ‘erub, his ‘erub is invalid; for what is its name? ‘Amalgamation’. R. Hanina ruled: His ‘erub is valid though he himself might be called, ‘One of the men of Wardina.’ Rab Judah further ruled in the name of Samuel: If one divides his ‘erub, it is invalid. In agreement with whose view? Is it in agreement with that of Beth Shammai, since it was taught: If five residents collected their ‘erub and deposited it in two receptacles, their ‘erub, Beth Shammai ruled, is invalid and Beth Hillel ruled: Their ‘erub is valid? — It may be said to agree even with the view of Beth Hillel, for it is only there that Beth Hillel maintained their view, where the receptacle was filled to capacity and something remained without, but not here where it was originally divided in two parts. But what need was there for the two rulings? — Both were required. For if we had been informed of the former ruling only it might have been assumed [that only there is the ‘erub invalid] since the man is particular, but not here. And if we had been informed of the latter ruling only, it might have been assumed [that only here is the ‘erub invalid] since it was intentionally divided, but not there. Hence both were required. R. Abba addressed the following question to Rab Judah at the schoolhouse of R. Zakkai: Could Samuel have said: ‘If a man divides his ‘erub, it is invalid’, seeing that he has laid down, ‘The house in which an ‘erub is deposited need not contribute its share to the bread’? Now what is the reason [for this ruling]? Is it not because he maintains that since there is bread lying in the basket it is regarded as lying in the place appointed for the ‘erub? Then why should it not be said in this case also, ‘So long as there is bread lying in the basket it is regarded as lying in the place appointed for the ‘erub’? — The other replied: There the ‘erub is valid even if there was no other bread in the house. What is the reason? — Because all the residents of the courtyard virtually live there. Samuel stated: The efficacy of an ‘erub is due to the principle of kinyan. And should you ask: ‘Why then should not the kinyan be effected by means of a ma'ah? [it could be replied:] Because it is not easily obtainable on Sabbath eves. But why should not a ma'ah effect acquisition at least where the residents did use it for an ‘erub? — Its use is forbidden as a preventive measure against the possibility of assuming that a ma'ah was essential, as a result of which, when sometimes a ma'ah would be unobtainable, no one would prepare an ‘erub with bread, and the institution of ‘erub would in consequence deteriorate. Rabbah stated: The efficacy of an ‘erub is due to the principle of habitation. What is the practical difference between them? — The difference between them is the case of an ‘erub that was prepared with an object of apparel, with food that was worth less than a perutah58ᵃᵇᶜᵈᵉᶠᵍʰⁱʲᵏˡᵐⁿᵒᵖᵠʳˢᵗᵘᵛʷˣʸᶻᵃᵃᵃᵇᵃᶜᵃᵈᵃᵉᵃᶠᵃᵍᵃʰᵃⁱᵃʲᵃᵏᵃˡᵃᵐᵃⁿᵃᵒᵃᵖᵃᵠᵃʳᵃˢᵃᵗᵃᵘᵃᵛᵃʷᵃˣᵃʸᵃᶻᵇᵃᵇᵇᵇᶜᵇᵈᵇᵉᵇᶠ