Reference for Bava Batra 46:5

תנן ניפול הנמצא בתוך חמשים אמה הרי הוא של בעל השובך ואף על גב דאיכא אחרינא דנפיש מיניה בדליכא

R. Zera questioned this. Scripture tells us, <i>And it shall come to pass that the city nearest unto the slain man</i>&nbsp;… [<i>shall bring a heifer</i>]. that is to say, even though there are other towns [in the vicinity] with a larger population? — We assume that there are none. But [if 'majority' is the decisive factor] why not take the biggest town anywhere? — Scripture speaks of a town surrounded by mountains.<span class="x" onmousemove="('comment',' So that the murderer would not naturally come to the spot from another town. ');">³</span>

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