Reference for Bava Batra 261:1

מגמר נמי לא תגמרו מיניה דאין לדיין אלא מה שעיניו רואות

"nor infer [any law] from it" — because a judge must be guided only by that<span class="x" onmousemove="('comment',' Lit., 'a judge has nothing but'. ');">¹</span> which his eyes see. Raba inquired: What<span class="x" onmousemove="('comment',' Lit., 'how'. ');">²</span>

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