Reference for Bava Kamma 63:6

אלא הא קתני שלזה רשות להלך ולזה רשות להלך

where this one [the defendant] was entering [as if] into his own domain, and the other [the plaintiff] was [similarly] entering [as if] into his own domain, it is nevertheless considered [in the eye of the law]<span class="x" onmousemove="('comment',' Referring to Deut. XIX, 5: As when a man goeth into the wood with his neighbour to hew wood, and his hand fetcheth a stroke with the axe to cut down the tree and the head slippeth from the helve and lighteth upon his neighbour… cf. also infra p. 175 ');">⁴</span>

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