Reference for Niddah 118:13

דאם איתא דבתר דתמו מיא אתא על שפת הספל איבעי ליה לאשתכוחי

should have been found on the rim of the bowl.<span class="x" onmousemove="('comment',' As, however, it was found within the bowl it must be assumed to have found its way there together with the water. ');">¹¹</span>

Jastrow