Reference for Arakhin 39:57

לאתויי מן הארכובה ולמעלה:

If they hold a man does utter his words in vain, then he should be free from any obligation to pay even if he said, [I vow the valuation] of a whole vessel; and [if they hold] that a man does not utter his words in vain, then he ought to pay even though he vowed half of its valuation? - Rabbah answered them: The Rabbis here hold with R'Meir and with R'Simeon: They hold with R'Meir that no man utters his words in vain, and they agree with R'Simeon who said [that he<span class="x" onmousemove="('comment',' Who vowed to bring a meal-offering of barley. v. Men. 103a.');">¹⁴</span>

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