Reference for Eruvin 69:10
ורבי אליעזר סבר לה כרבי נחמיה דאמר אפי' טלית אפי' תרווד אין ניטלין אלא לצורך תשמישן:
it becomes unclean, [but if it moved from its place] on account of the vibration [of an object on which it rested]<span class="x" onmousemove="('comment',' If the zab, for instance, stamped upon the ground and the shaking of the floor caused the object to shift from its place, so that the movement is the result of the vibration of the floor and only the indirect result of the zab's strength.');"><sup>32</sup></span> it remains clean'?<span class="x" onmousemove="('comment',' Which again proves that the determining factor is the movement of the object from its place by the direct strength of the zab, and that the question of its status as a tent or a vessel does not come at all under consideration. It cannot therefore be suggested that the Tannas in the Mishnah of Zabim differ on the question of the status of the cupboard as a vessel or tent.');"><sup>33</sup></span> Rather, said Abaye, all agree [that an object that] moved from its place as a direct result of the zab's strength is unclean<span class="x" onmousemove="('comment',' Even though it was a tent.');"><sup>34</sup></span> [but if it moved as] a result of the shaking [of another object on which it rested] it is clean;<span class="x" onmousemove="('comment',' Though it was a vessel.');"><sup>35</sup></span>