Reference for Avodah Zarah 36:1

ומי יימר דהכי איכא [א"ל השתא חזית] הוו הנהו כלבי דהוו קא אכלי אינשי שקל קלא שדא בהו הוו קאתו למיכליה אמר אלהא דמאיר ענני שבקוה ויהבה ליה

“But who can assure me that this will work?” He replied, “You will see now.” There were there some dogs who would bite everyone. He took a stone and threw it at them, and when they were about to bite him he exclaimed, “O God of Meir answer me!” and they let him alone. The warder then handed her over to him.

Jastrow

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