Reference for Eruvin 102:3
וזו היא שאמרו מאן קתני לה ר"מ ואהייא קאי אאינו מכיר או שאינו בקי בהלכה ולא אמרו מערבין בפת אלא להקל מאן קתני לה רבי יהודה
- R'Meir.<span class="x" onmousemove="('comment',' Who holds that the essence of an 'erub is the bread.');"><sup>9</sup></span> And what does he refer to? - To the case of one WHO DOES NOT KNOW OF ANY TREE OR WALL OR ONE WHO IS NOT FAMILIAR WITH THE HALACHAH.<span class="x" onmousemove="('comment',' Who appointed, therefore, the spot on which he stood as his Sabbath base.');"><sup>10</sup></span> And who was it that learned, 'THE RABBIS' ENACTMENT THAT AN 'ERUB IS TO BE PREPARED WITH BREAD HAVING THE ONLY PURPOSE OF MAKING IT EASIER'?<span class="x" onmousemove="('comment',' Implying that the original enactment was that the man must personally occupy the spot which he appoints as his base for the Sabbath.');"><sup>11</sup></span> - R'Judah.