Commentary for Shabbat 45:7
מאי מברך מברך אשר קדשנו במצותיו וצונו להדליק נר של חנוכה והיכן צונו רב אויא אמר (דברים יז, יא) מלא תסור רב נחמיה אמר (דברים לב, ז) שאל אביך ויגדך זקניך ויאמרו לך
R. Amram objected: Dem'ai<span class="x" onmousemove="('comment',' V. Glos, ');"><sup>22</sup></span> can be employed for an 'erub<span class="x" onmousemove="('comment',' V. Glos, ');"><sup>22</sup></span> and for a joint ownership;<span class="x" onmousemove="('comment',' I.e., to link up a number of side streets in respect of carrying on the Sabbath; v. p. 18, n. 7; it is the same with side streets. ');"><sup>23</sup></span> a benediction is pronounced over it, and grace in common is recited after it,<span class="x" onmousemove="('comment',' 'Grace in common' is recited when three persons or more dine together; it is then prefaced by one of them saying, 'My masters, let us recite grace;'this man acts as leader. When only two dine together, each recites grace by himself. ');"><sup>24</sup></span>