1while he who said ‘four handbreadths’, is of the opinion that it is forbidden to make use [of the floor space] under the beam? — No; all may agree that it is permissible to make use [of floor space] under the cross-beam, but here they differ on the following principles: One Master holds the opinion that a cross-beam [is required] on account [of the necessity for] a distinguishing mark; while the other Master holds that a cross-beam [is required] on account [of the necessity for] a partition. If you prefer I might reply that all agree that a cross-beam [is required] on account [of the necessity for] a distinguishing mark; but here they differ on [the question whether] the distinguishing mark below [must be of the same dimensions as] the one above. One Master is of the opinion that we say that a distinguishing mark below [is provided by the same width] as the one above, and the other Master holds that we do not say that a distinguishing mark below [is provided by the same dimensions] as the one above. And if you prefer I might reply that all agree that a distinguishing mark below [is provided by the same width] as the one above, but their point of difference here is [the question whether a wider space was ordered] as a preventive measure against the possibility of its being trodden down. [If an entrance to an alley] was less than ten handbreadths [in height] and it was desired to dig up the ground so as to bring up the altitude to ten [handbreadths] how much must one excavate? — [You ask] , ‘How much must one excavate’? As much [of course] as one requires! — Rather [this is the question:] To what extent in width [must one excavate]? — R. Joseph replied: To four [handbreadths]. Abaye replied: To four cubits. Might it be suggested that they differ on the principle laid down by R. Ammi and R. Assi? For it was stated: If a breach was made in a side-wall of an alley close to its entrance, it was ruled in the name of R. Ammi and R. Assi, if a strip of [the width of] four [handbreadths] was there it is permissible [to regard the alley as ritually fit], provided the breach is not wider than ten [cubits]. If, however, [there was] no [such strip there] it is permissible [to regard the alley as ritually fit, if the breach was] less than three [handbreadths wide], [but if it was] three [handbreadths wide] this is not permissible. [Might it then be suggested that] R. Joseph adopts the principle of R. Ammi and that Abaye does not hold the principle of R. Ammi? Abaye can answer you: There [it is a question of] destroying the ritual fitness of an alley, but here [it is a case of] creating one. [Consequently] if the excavation extends [to a width of] four cubits [the entrance becomes] ritually fit, but if not, it is not [fit]. Said Abaye: Whence do I derive my ruling? From what was taught: ‘[The movement of objects in] an alley cannot be permitted [on the Sabbath] by means of a sidepost and a crossbeam unless houses and courtyards open out into it’. Now if [a strip of the width] of four [handbreadths were to constitute a proper alley wall) how could this be possible? And should you reply that the doors might open in the middle wall, the fact is [it could be retorted] that R. Nahman stated: We have a tradition that if [the movement of objects in] an alley is to be permitted [on the Sabbath] by means of a side-post and a crossbeam, its length must be more than its width and houses and courtyards must open out into it. And R. Joseph? — Each door might open in a corner. Abaye further stated: Whence do I derive my ruling? From what Rami b. Hama said in the name of R. Huna: If a projection from [the end of a side] wall of an alley is less than four cubits [in width] it may be regarded as a side-post and no other post is required to effect the ritual fitness of the alley, [but if it is] four cubits [wide] it is deemed to be [a part of the structure of the] alley, and another post is required to effect its ritual fitness. And R. Joseph? — To deprive [a projection] of its status as a post there must be [a width of] four cubits but as regards constituting [a wall in] an alley, even [a width] of four handbreadths is also [enough] to constitute an alley. [Reverting to] the above text, ‘Rami b. Hama said in the name of R. Huna: If a projection from [the end of a side] wall of an alleyᵃᵇᶜᵈᵉᶠᵍʰⁱʲᵏˡᵐⁿᵒᵖᵠʳˢᵗᵘᵛʷˣʸᶻᵃᵃᵃᵇᵃᶜᵃᵈᵃᵉᵃᶠᵃᵍᵃʰᵃⁱᵃʲᵃᵏᵃˡᵃᵐᵃⁿᵃᵒᵃᵖᵃᵠᵃʳᵃˢᵃᵗᵃᵘᵃᵛᵃʷᵃˣᵃʸᵃᶻᵇᵃᵇᵇᵇᶜᵇᵈᵇᵉᵇᶠᵇᵍᵇʰᵇⁱᵇʲᵇᵏᵇˡᵇᵐᵇⁿ
2is less than four cubits [in width] it may be regarded as a side-post and no other post is required to effect the ritual fitness of the alley, [but if it is] four cubits [wide] it is deemed to be [a part of the structure of the] alley, and another post is required to effect its ritual fitness’. Where, however, does one put up that ‘[other] post’? If it be attached to the projection, would not one be merely adding to it? — R. Papa replied: One puts it upon the other side. R. Huna son of R. Joshua said: It may even be maintained that it is attached to the projection but it is made bigger or smaller. R. Huna son of R. Joshua stated: This has been said only in respect of [an entrance to] an alley [that was no less than] eight [cubits in width], but where [the entrance to] an alley is seven [cubits wide], Sabbatic ritual fitness is effected because the portion built-up is longer than the breach. [This ruling is inferred] a minori ad majus from [the law relating to] a courtyard: If a courtyard [the movement of objects in which on the Sabbath] cannot be rendered permissible by means of a side-post and a cross-beam is nevertheless deemed fit [for such movements] where its built-up portions are larger than its broken [parts], how much more then should an alley, where [such movements] may be rendered permissible by means of a side-post and a crossbeam, be deemed fit when the built-up portion [across its entrance] is larger than its open [part]. But is not a courtyard, however, different [from an alley] since a gap of ten cubits [was also allowed in it]? Then how can one apply [the same ruling] to an alley where only a gap of four cubits [was allowed]? — R. Huna son of R. Joshua holds the opinion that in an alley also a gap of ten cubits is allowed. But whose view has been under discussion? [Obviously that] of R. Huna; and R. Huna, surely, is of the opinion, [is he not,] that only a gap of four cubits [is allowed in an alley]? R. Huna son of R. Joshua only stated his own view. R. Ashi said: It may be maintained that even [where the entrance to] an alley was eight [cubits wide] no side-post is required, since, whatever your assumption [might be, the ritual fitness of the alley cannot be affected]. For if the built portion is bigger [the movement of objects in the alley would] be permitted by [reason of the fact that] the built portion [across the entrance] is larger than the opening; and if the open section is bigger [the projection] might be regarded as a side-post. What [other possible objection can] you submit? That both might be exactly alike? [But such an assumption] would amount to an uncertainty in respect of a Rabbinical enactment, and in any uncertainty appertaining to a Rabbinical enactment the more lenient course is followed. R. Hanin b. Raba stated in the name of Rab: As to a breach that was made in an alleyᵇᵒᵇᵖᵇᵠᵇʳᵇˢᵇᵗᵇᵘᵇᵛᵇʷᵇˣᵇʸᵇᶻᶜᵃᶜᵇᶜᶜᶜᵈᶜᵉᶜᶠᶜᵍᶜʰᶜⁱᶜʲᶜᵏᶜˡᶜᵐᶜⁿᶜᵒᶜᵖᶜᵠᶜʳᶜˢᶜᵗᶜᵘᶜᵛᶜʷᶜˣᶜʸᶜᶻᵈᵃᵈᵇᵈᶜ