Reference for Bava Kamma 112:13

איתיביה רב יוסף לרבה

hence he should be considered a paid bailee. Some, however, explain it thus: R. Joseph said that he would be like a paid bailee as the Divine Law put this obligation<span class="x" onmousemove="('comment',' Of looking after the lost article which he found. ');">¹¹</span> upon him even against his will; he must therefore be considered as a paid bailee.<span class="x" onmousemove="('comment',' Who after receiving the consideration is similarly under an obligation to guard. ');">¹²</span> R. Joseph brought an objection to the view of Rabbah [from the following]:

Jastrow