Reference for Menachot 123:12

והא בעינן על א"ל רב חסדא לרב המנונא ואמרי לה רב המנונא לרב חסדא רבי לטעמיה דאמר על בסמוך

how much less before the King of Kings, the Holy One, blessed be He! Therefore, he should put one beside the other and wave them. But we have to conform with [the expression] 'al!<span class="x" onmousemove="('comment',' Which usually means 'upon'.');">¹⁶</span>

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