Reference for Menachot 190:8

אמר רב אשי מאי קושיא דלמא מאי מבפנים במקום זריזין

The cakes would then become invalid by being kept overnight!<span class="x" onmousemove="('comment',' Since they were baked, and thereby hallowed, on the day before the Sabbath.');">⁹</span> Said Raba: This question was raised by a hard man, who is as hard as iron, namely R'Shesheth.

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