Reference for Bava Kamma 209:14

טעמא דמרח הא לא מרח לא אמאי ותיהוי כי אגף חציה

while in a tent where a corpse of a human being was kept]. If it was corked up with vine shoots<span class="x" onmousemove="('comment',' But not with lees. ');">³⁵</span> it would not do unless it was smeared with mortar.<span class="x" onmousemove="('comment',' For the purpose of blocking up the hole well. ');">³⁶</span> If there were two vine shoots corking it up they would have to be smeared on all sides as well as between one shoot and another.'<span class="x" onmousemove="('comment',' Kel. X, 6. ');">³⁷</span>

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