Reference for Eruvin 69:3
רבה ורב יוסף דאמרי תרוייהו הכא במגדל של עץ עסקינן דמר סבר כלי הוא ואין בנין בכלים ואין סתירה בכלים ומר סבר אהל הוא
In a field i is ineffective in agreement with the Rabbis.<span class="x" onmousemove="('comment',' [Who differ from R. Simeon infra 95b and forbid the carrying of an object in relays from a field to a town (R. Han.) .] The last sentence is rightly omitted by Bah,. On the difficulties it presents cf. Strashun.');"><sup>6</sup></span> Both Rabbah and R'Joseph explained:<span class="x" onmousemove="('comment',' The difficulty supra 34b: 'Is not he in one place etc.'');"><sup>7</sup></span> We are dealing here with a wooden CUPBOARD, one Master<span class="x" onmousemove="('comment',' The first Tanna of our MISHNAH:');"><sup>8</sup></span> being of the opinion that it [has the status of] a vessel to which the prohibition of building or demolition does not apply,<span class="x" onmousemove="('comment',' Lit., 'and there is no building in vessels and no demolition in vessels'. Since the cupboard, therefore, may be broken open the 'erub is accessible and effective.');"><sup>9</sup></span>