Mishnah for Yevamot 163:13
בשלמא לריש לקיש קסבר בדרבנן נמי רבויא הוא דבעינן אלא לרבי יוחנן קשיא
Surely it was taught: If in front of two baskets, one of which contained unconsecrated fruit and the other that of <i>terumah</i>, were two <i>se'ah</i> measures, one containing unconsecrated fruit and the other that of <i>terumah</i>, and the latter fell into the former, behold these are permitted,<span class="x" onmousemove="('comment',' Even an Israelite may eat from the basket that contained the unconsecrated fruit. ');"><sup>33</sup></span> for it is assumed that the <i>terumah</i> fell into the <i>terumah</i> and the unconsecrated fruit fell into the unconsecrated fruit.<span class="x" onmousemove="('comment',' Tosef. Ter. VI end; Pes. 9b, 44a; Naz. 36b. ');"><sup>34</sup></span> And [in reference to this ruling] Resh Lakish stated: 'Only if the unconsecrated fruit<span class="x" onmousemove="('comment',' In the basket. ');"><sup>35</sup></span>