Reference for Eruvin 181:12
מתיב רב ששת ר"ש אומר אחד גגות אחד חצירות ואחד קרפיפות רשות אחת הן לכלים ששבתו בתוכן ולא לכלים ששבתו בתוך הבית אי אמרת בשלמא דעירבו היינו דמשכחת לה מאני דבתים בחצר
[There is in fact no difference] whether an 'erub had been prepared or not'.<span class="x" onmousemove="('comment',' In either case freedom of movement is permitted.');"><sup>28</sup></span> R'Hisda demurred: According to the view of Samuel and R'Johanan,<span class="x" onmousemove="('comment',' That, though objects that were in a courtyard when the Sabbath began may be moved into another courtyard, those that were at the time mentioned in a house in that courtyard may not be moved to an adjoining courtyard, even after they had been brought into their own courtyard by means of an 'erub.');"><sup>29</sup></span> it might well be objected, 'Two objects in the same courtyard, and one may be moved<span class="x" onmousemove="('comment',' Into an adjoining courtyard (cf. prev. n.) .');"><sup>30</sup></span>