Reference for Pesachim 91:9

ונימא מיל הא קמ"ל דשיעורא דמיל כממגדל נוניא ועד טבריא

<big><b>MISHNAH: </b></big>[REGARDING] 'DEAF' DOUGH,<span class="x" onmousemove="('comment',' An idiomatic expression: dough in which it is doubtful whether leavening has set in or not. Another reading: 'potsherd' dough, i.e., dough whose surface has gone hard and smooth and contains no splits, which are the usual signs of fermentation, and thus there is doubt.');">⁹</span> IF THERE IS [A DOUGH] SIMILAR TO IT WHICH HAS BECOME LEAVEN,<span class="x" onmousemove="('comment',' I.e., dough which was kneaded at the same time.');">¹⁰</span>

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