Study Eruvin folio 70B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
The Talmud explains the two sides of the question: On the one hand, perhaps only in a case where, if the person wanted to establish an eiruv on the previous day he could have established an eiruv, he can also renounce his rights on Shabbat. But this heir, since, if he wanted to establish an eiruv th
Or perhaps an heir is like his father’s foot, i.e., he is considered an extension of his father and substitutes for him in all regards, which means that just as his father could have renounced his rights, so can he.
Rav Naḥman said to him: I myself say that an heir can indeed renounce rights in a courtyard, while those scholars of the school of Shmuel taught: He cannot renounce rights in a courtyard. Rava raised an objection to Rav Naḥman from the following baraita: This is the principle: Anything that is permi
The Talmud now explains each element of the baraita: Anything that is permitted for part of Shabbat is permitted for all of Shabbat. For example, if an eiruv was established between two adjacent courtyards that are connected via an opening between them, and that opening was closed up on Shabbat, th
The Talmud comments: The words this is the principle come to include the case of an alleyway whose cross beams or side posts were removed on Shabbat, teaching that one may nonetheless use the alleyway, as it had been permitted at the outset of Shabbat.