Reference for Bava Kamma 115:7

א"ר פפא לא תימא עד שתצא לדעת ותחזור לדעת אלא כיון שיצתה לדעת אע"פ שחזרה שלא לדעת מ"ט דא"ל כיון דילפא כל אימת דמשתמטא להתם רהטא:

— R. Kahana said: It slipped in its own water. Raba, however, said: [The rule would hold good even] where another animal pushed it down. The one who explains the ruling to apply where another animal pushed it down, would certainly apply it where it slipped in its own water.<span class="x" onmousemove="('comment',' As this is certainly a matter of accident. ');">⁶</span>

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