Eruvin 2:1 - 2:2

עושים פסין לביראות – [watering stations (especially in the land of Israel for Temple pilgrims)] that are in the public domain because these watering stations/wells are the private domain, for they are deep ten [handbreadths] and one cannot fill up from them and take it out in to the public domain and they make boards that will make [an empty space] around the cistern which is the private domain and he will fill up and take out and leave there, and his animal can go in completely, or its head and most of its body and gave it to drink.

דיומדין – two pillars where each pillar from these four appears as two. "דיו" in the Greek language is “two.” But when one inserts the pillars that is made like two for the southwestern corner, it is found that one wall inclines towards the east, and one wall to the north and the second to the northwestern corner leans one side to the east and the other side to the south, and when you place all four of them in the four corners, it is found that direction is two cubits – one wall corresponding to a cubit and the space between them.

וארבעה פשוטים – in the middle, he places in each direction a board that is a cubit wide, and at the time when there isn’t between each board from these four corner-pieces made of rectangularly joined or of a block dug out In the shape of a trough, four of which corner-pieces form, in legal fiction, an enclosure of wells (see Talmud Eruvin 19a), but rather ten cubs or less, Rabbi Meir admits that there is no need for these plain boards, but if there is more than thirteen and one-third cubits between them, Rabbi Yehuda admits that they need plain boards; they do not dispute other than from ten until thirteen and one-third cubits as Rabbi Meir states that they require plain boards and Rabbi Yehuda states that they don’t, and the Halakha is according to Rabbi Yehuda.

שתי רבקות של שלש שלש בקר – for the width of each cattle is two cubits minus one-third, it is found that that the width of six cattle is ten cubits and that is the space that one can place between each and every board, according to Rabbi Meir. But if the width is greater than this, he needs to increase the number of plain boards.

רבקות – from the language (I Samuel 28:24): “[The woman had] a stall-fed calf [in the house].”

ר"י אומר של ארבע ארבע – they are thirteen and one-third cubits.

קשורות אבל לא מותרות – that you should not say that they are sort of tied and not actually tied, for that reason it was taught in the Mishnah, “"אבל לא מותרות/but not slack or loosely to be stringent and to reduce the space that is between them.

אחת נכנסת ואחת יוצאה – one team of cattle entering and one team leaving and there is greater width than if both of them would have been going out or both of them leaving and this is a leniency since we don’t require to be so squeezed in.

מותר להקריב לבאר – the boards and to make a short circumference as long as there would be from the rim of the well until between the boards in order that the head and most of the body of the cow which is two cubits but not less than this, lest he be drawn after his cow and remove the bucket outside of the partition.

מותר להרחיק כל שהוא – to make a larger partition like what his heard desires.

ובלבד שירבה בפסין – as long as he increases the boars, for all while he distances himself from the cistern, the space increases between the boards and he needs to increase the boards so that there won’t be between each and every plain board [and between a plain board and a corner-piece more than thirteen and one-third cubits according to the words of Rabbi Yehuda, and the Halakha is according to him.