Reference for Bava Kamma 57:4

פליגי בשעת נפילה בנתקל פושע מר סבר נתקל פושע הוא ומ"ס נתקל לאו פושע הוא

R. Meir [on the other hand] agrees with the Sages that, regarding bottles that were placed upon the top of the roof for the purpose of getting dry and fell down because of a wind of unusual occurrence<span class="x" onmousemove="('comment',' Which could hardly have been anticipated. ');">⁴</span>

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