A secondary story built upon two houses, or bridges under which a road passes, one may carry beneath them on the Sabbath — [these are] the words of R’ Yehudah. But the Sages prohibit. R’ Yehudah also said: We may make an eruv for an open alley. But the Sages prohibit.

One who finds tefillin should bring them in pair [by] pair. Rabban Gamliel says: Two [by] two. To what do these words apply? To old ones, but for new ones he is exempt. If he found them tied in pairs or bundles, he must wait near them until dark, then bring them in. But in a time of danger, he may cover them and leave.