Reference for Chullin 31:38

תברא מי ששנה זו לא שנה זו

R'Papa, however, answered: Indeed, the whole was taught by one Tanna, but the first clause deals with the wall of a cave,<span class="x" onmousemove="('comment',' I.e., a wall so formed by nature, as opposed to a wall built up from loose materials.');">²¹</span>

Jastrow

Jastrow

Jastrow