Reference for Bava Batra 23:14

אמר אמימר וחכם עדיף מנביא שנאמר (תהלים צ, יב) ונביא לבב חכמה מי נתלה במי הוי אומר קטן נתלה בגדול

of Samuel said that three kabs' space must be left to each. It has been taught to the same effect: If a man says to another, I sell you a portion in a vineyard, Symmachus said, he must not sell him less than three kabs' space. R. Jose, however, said that this is sheer imagination.<span class="x" onmousemove="('comment',' Lit., 'words of prophesying'. ');">¹¹</span>

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