Reference for Bava Kamma 43:6
אלא למ"ד אשו משום ממונו האי אש לאו ממונו דבעל כלב הוא
We have learnt:<span class="x" onmousemove="('comment',' Supra p. 109. ');"><sup>9</sup></span> IF A DOG TAKES HOLD OF A CAKE [TO WHICH LIVE COALS WERE STUCK] AND GOES [WITH IT] TO A BARN, CONSUMES THE CAKE AND SETS THE BARN ALIGHT, [THE OWNER] PAYS FULL COMPENSATION FOR THE CAKE, WHEREAS FOR THE BARN [HE] PAYS [ONLY] HALF DAMAGES. This decision accords well with the view that the liability for Fire is on account of the human agency that caused it; in the case of the dog, there is thus some liability upon the owner of the dog as the fire there was caused by the action of the dog.<span class="x" onmousemove="('comment',' All the damage to the barn that resulted from the fire is thus considered as if done altogether by the dog that caused the live coals to start burning the barn. ');"><sup>10</sup></span>