Talmud Bavli
Talmud Bavli

Halakhah for Eruvin 46:17

לר"ש נמי כיון דנזרע רובו הוי ההוא מעוטא

If the greater part of it is sown [etc.]'. Said R'Huna son of R'Joshua: This applies only [where the area sown was] bigger than two beth se'ah<span class="x" onmousemove="('comment',' Such a large area, not having been fenced round for dwelling purposes, has the status of a karmelith (v. Glos.) while the unsown part has the status of a courtyard whose one complete side is fully open into a karmelith and both sections are consequently forbidden domains for the movement of objects on the Sabbath.');"><sup>28</sup></span> but one of two beth se'ah<span class="x" onmousemove="('comment',' Though the sown part is subject to the restrictions of a karpaf and the unsown one to those of a courtyard that fully opens out into a karpaf');"><sup>29</sup></span> is permitted.<span class="x" onmousemove="('comment',' Since both belong to the same owner.');"><sup>30</sup></span> In agreement with whose view? Is it in agreement with that of R'Simeon; for we learned: R'Simeon ruled: Roofs, courtyards and karpafs<span class="x" onmousemove="('comment',' Even if they belonged to different owners.');"><sup>31</sup></span> are equally regarded as one domain in respect of [carrying from one into another] objects that were kept within them when Sabbath began, but not in respect of objects that were in the house when the Sabbath began?<span class="x" onmousemove="('comment',' In relation to a house, these are regarded as different domains even if they belong to one man, and any object taken out on Sabbath from the house to the courtyard must not be moved thence to the karpaf or roof (Rashi) .');"><sup>32</sup></span> But [it may be objected] even according to R'Simeon, since the major part of it was sown [with seed] would not the minor part

Sefer HaChinukh

And since we explained the shekel-coins, it is fitting that we explain how much is a chomer: You should know that the chomer is a measure that is [also] called a kor. And a kor is two letech, and a letech is fifteen seah. It comes out that a chomer is thirty seah, which is ten eipah - as an eipah is three seah. It is a well-known thing and we also already knew it from our Rabbis, may their memory be blessed, (Eruvin 23b) that a place that has fifty ells by fifty ells is a beit seah - meaning that it is [what contains what grows from] a seah of barley - and that is two thousand five hundred [square ells] by arithmetic (multiplication). It comes out that a place that is fitting for the seed of a chomer of barley - which is thirty seah - is seventy-five thousand ells by arithmetic.
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