that if there is a legal limit above ten spans, a man who wishes to be a Nazarite on the day of the coming of the Messiah should be permitted to drink wine not only on Sabbath and the festivals but also on the day following Sabbath, because Elijah cannot come on the Sabbath? The sages who prohibited a man of that kind to drink wine on a weekday were themselves in doubt as to the validity of a legal limit above ten spans and only made it more rigid for the man on general principles.
"And did not enter the harbor until after dark," etc. It was taught in a Boraitha, that R. Gamaliel had a telescope, through which he could see for a distance of two thousand ells on land and on sea. If a man wishes to measure the depth of a valley, he should use one of those telescopes and if he should wish to measure a tree, he should observe his shadow, measure himself and his shadow and the shadow of the tree and calculate the proportion.
Nehemiah the son of R. Hanilayi was engrossed in thinking about a Halakha and inadvertently stepped out beyond the legal limits. Said R. Hisda to R. Na'hman: "Thy disciple Nehemiah is in trouble," and R. Na'hman answered: "Make him a partition with men and let him come back."
R. Na'hman bar Itz'hak sat behind Rabha who sat in the presence of R. Na'hman. Said R. Na'hman bar Itz'hak to Rabha: "How was the case when R. Hisda asked R. Na'hman concerning Nehemiah who had overstepped the legal limits? Shall we say, that there were sufficient men on hand who had made an Erub at the limits and could therefore go out to Nehemiah then the question was merely whether the Halakha prevailed according to R. Gamaliel, who said, that where there is a partition, even if a man had not declared his intention to rest there on the Sabbath, he may avail himself of it and traverse its entire extent, or that there were not sufficient men who had made an Erub who could reach Nehemiah and the question presented itself, whether the Halakha prevailed according to R. Eliezer, that if a man went out two ells beyond the limits he may return, and Nehemiah did not go out further than that." Is this not self-evident? For if there were sufficient men to reach Nehemiah, why did R. Hisda ask R. Na'hman? Rabh had already decided that the Halakha mentioned prevailed according to R. Gamaliel and for R. Hisda Rabh was the final authority? The question was merely then, whether R. Hisda could make a partition with men who had not made an Erub, at the end of two ells beyond the limit, which according to R. Eliezer was free to everybody, so that Nehemiah who had gone further than two ells beyond the limit could avail himself of that partition and return.
R. Na'hman bar Itz'hak objected to the above, addressing Rabha: "Have we not learned in a Boraitha: 'If the wall of a booth fell in on a festival, one must not use a man, or an animal or vessels or put up a bed and cover it with a sheet in order to fill in the gap, because a temporary tent must not be erected on a festival to commence with and so much less on a Sabbath?'" Answered Rabha: Thou quotest this Boraitha but I can quote another which states: "A man can make a wall of his comrade, that he may be able to eat a meal or drink or sleep in a booth (the wall of which had fallen in); he may also put up a bed and cover it with a sheet to keep the sun off from a corpse or from food."
These two Boraithas are contradictory to each other? This .presents no difficulty. One of them is according to the opinion of R. Eliezer and the other according to the opinion of the sages.
It happened once, that some baldachin-makers brought in water through a partition formed by men. Samuel punished them, saying: "This was done in an emergency where a man had overstepped the legal limits accidentally but ye do this 'purposely.'"
It once happened that flasks of wine were thrown out of Rabha's house on the road in the city of Mehuzza. When Rabha came from his college, a number of men followed him as usual, and thus relying upon the partition formed by them, someone carried the flasks back into the house. Next Sabbath, the same thing happened, but Rabha would not permit the flasks to be carried back to the house, saying, that this time it might seem as if it were done on purpose. In like manner straw was brought into the house of Levi, hay to the house of Zera, and water into the house of R. Shimi bar Hyya.
MISHNA: One who is authorized to go beyond the prescribed limit on important business pertaining to public or private safety and is told, that "it is already done," is at liberty to go two thousand ells in any direction. If he was still within the prescribed limit, it is as if he had not gone out at all, for all those who go forth on an errand of safety, are permitted to return to their homes on Sabbath.
GEMARA: What is meant by "if he was still within the prescribed limit"? Said Rabha: "This means to impart to us, that if he had not gone out beyond the limit, it was as if he had not left his house. Is this not self-evident? I would say, that if he had gone out of his house he forfeits his right to go two thousand ells in any direction he chooses, and we are told, that such is not the case." R. Shimi bar Hyya however said: "This means to state, that if the man had already gone beyond the usual limit but had not yet gone out of the additional limit allowed him by the sages for the errand, it is regarded as if he had not overstepped his own ordinary limit." Upon what point do they differ? Upon the permissibility of one end of a limit including another established limited distance adjoining it. The latter holds, that this point may be depended upon, while the former holds that it cannot.
"For all those who go forth on an errand of safety, "etc. Even such as go beyond four thousand ells? In the first part of the Mishna it is stated that they only have two thousand ells in each direction? What question is this? This is a case of where a man goes forth on an errand of safety, and on such an errand it may be permitted to go beyond four thousand ells. If there is a question it can be made upon the following Mishna: "Those who go to assist others in case of conflagration, or of an attack of robbers, or of flood, or of rescuing people from the ruins of a falling building are considered for the time being as inhabitants of that place, and may go thence on the Sabbath, two thousand ells in every direction." Thus here it is stated, that they may go only two thousand ells and our Mishna does not limit the distance? Said R. Jehudah in the name of Rabh: Our Mishna means to imply, that they may even return to their homes with all their implements of war, as we have learned in a Boraitha: In former times, they used to deposit their arms in a house nearest to the fortifications of the city. Once it happened, however, that the enemy was informed of the fact, that the Israelites had stored their arms, so they pursued them and in endeavoring to enter the house to gain possession of their arms, the Israelites trampled more of their own to death than were killed by the enemy. Since that time it was ordered to carry their arms back to their homes.
R. Na'hman bar Itz'hak however said: This presents no difficulty: If the Israelites are victorious, they have only two thousand ells in which they may go in every direction, but if they are defeated, they may escape as far as possible.
R. Jehudah said in the name of Rabh: If enemies besieged cities inhabited by Israelites, the latter must not go outside of the cities with their arms and must not violate the Sabbath, providing the enemies were there on account of money-matters; but if they were there for the purpose of slaughter, the Sabbath may be violated and arms be carried on Sabbath. If a city near the boundary of the country is besieged even on account of a trivial business matter such as straw or hay, arms may be carried and the Sabbath may be violated. Said R. Joseph bar Minyumi in the name of R. Na'hman: "Babylon is considered as a city near the boundary," and this dictum was explained to mean the city of Neherdai (which was surrounded on one side by Gentile neighbors and on the other side by Israelites).
MISHNA: If a man sit down by the road-side (towards dark on the eve of Sabbath), then gets up and observes, that he is near a town, he must not enter the town; for it had not been his intention to do this. Such is the dictum of R. Meir; but R. Jehudah permits him to enter. R. Jehudah said: "It once happened that R. Tarphon entered a town although it was not his intention to do so."
One who falls asleep on the eve of Sabbath while on the road and thus knows not that night has set in, is permitted (upon awaking) to go two thousand ells in any direction. Such is the decree of R. Johanan ben Nouri; but the sages hold, that he has only the right to move four ells. R. Eliezer said: "And he himself forms the centre of the four ells." R. Jehudah however said: He can go four ells in whichever direction he pleases. Still R. Jehudah admitted, that if the man had made his choice (which direction to take) he must not afterwards (change his mind and) go in another direction. Should there be two persons so situated (i.e., form the centre of the four ells they are allowed to move in), and part of the four ells permitted