Reference for Bava Kamma 11:11

בור תוכיח וחזר הדין

— Pit, however, will refute [this reasoning]. The argument is [thus endlessly] reversible [and liability<span class="x" onmousemove="('comment',' Even when the nuisance has, like Fire, been assisted by an external force and is, like Pit, unable to travel and do damage. ');">⁹</span>

Jastrow