Eruvin 4:6 - 4:7

היו שנים – [two people] standing six cubits apart from each other where two cubits of each one of them is enclosed with that of his fellow, they may bring and consume [food] within the two cubits as long as this one does not stretch his hand into the two outer [cubits of the other] (and the same applies in the other direction) for he has nothing in them and he takes out to there his bread and/or his belongings.

והאמצעי מובלע ביניהם – two cubits within this one’s and two cubits within that one’s, he is permitted into each of them. He can turn this way and use with this one, and/or turn that way and use the other.

לג' חצרות – and they are all adjacent to each other.

פתוחות לרשות הרבים – for each one is a domain unto itself and they don’t have the benefit of crossing each to the other, but they ae not forbidden to each other.

ערבו שתיהן עם האמצעית היא מותרת עמהן וכו' – But, the Rabbis differ from this opinion of Rabbi Shimon and state that they are all forbidden to each other now, but Rabbi Shimon would say to them: But isn’t this the case that there were three, and the middle person’s overlapped in the meantime but you admit that he is permitted with them and they (i.e., the other two) are permitted with him which is similar to three courtyards but why are you disputing with me regarding the three courtyards, but the Rabbis say to him: there, in the case of the three courtyards, because they are large, the two outer ones are prohibited to each other, let them come and remove from this one (i.e., the middle one) to theirs (i.e., the one’s that are external). But the [owner of the] middle [courtyard] did not pay attention and he did not remind them for they said, lest it is one of those who lodge in the middle [courtyard] who is permitted both in this one and from that one he removes something; but here, with three people, if one comes from one of the two outer [courtyards] to remove into two cubits of the other’s outer area, the middle one will give heed to it and remind him, but the Halakha is according to Rabbi Shimon regarding the three courtyards where the [residents of] the two outer ones are prohibited to each other [to carry from one to the other].

והיה מכיר אילן או גדר – that he is able to arrive there prior to it getting dark, but that he is tired and wants to rest in his place.

לא אמר כלום – since he did not specify which four cubits he chose for himself from under the tree it is not a Sabbath resting place, and he has nothing other than the four cubits where he is, for he did not acquire a Sabbath resting place in his location since he uprooted his mind from making a Sabbath resting place here and also under the tree, he did not acquire a Sabbath resting place but these words apply when there are eight cubits or more underneath the tree for it would be possible to state that he chose this side or that he chose that side and there wouldn’t be a conclusion, but seven cubits, by force, part of his home would be recognized with the middle cubit, for it is impossible that he did not specify/verify, for if it was the middle of the tree, he specified four cubits, they are part of that, or if it were from one side or the other side, it is part of them, therefore, he acquired there [a Sabbath resting place].

אמר שביתתי בעיקרו – for since he concluded his place of that Sabbath resting place, he acquires for himself two thousand [cubits] to the side of his feet and two thousand [cubits] to the side of his house.