Reference for Arakhin 39:5

הכא ודאי בבת אחת נדר בבת אחת אמדינן ליה או דלמא

And if you find a reason for saying that since he said, 'Twice' it is to be as if he had vowed one time after the other, what is [the law] if they had estimated him incidentally?<span class="x" onmousemove="('comment',' I.e., not with any particular purpose in view.');">²</span>

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