Yevamot 121B

שמא חבר הוא. ותנא קמא, אגב איצצא מזקי ליה.

that perhaps he is a charmer [ḥabbar] of snakes and scorpions who knows magic or some stratagem to keep them from harming him. And the first tanna holds that we need not be concerned about this possibility, as, due to the pressure of his body falling on top of them, they will harm him, even if he could control them under other circumstances.

תנו רבנן: נפל לתוך כבשן האש ⁠— מעידין עליו. ליורה מלאה יין ושמן ⁠— מעידין עליו. משום רבי אחא אמרו: של שמן ⁠— מעידין עליו, מפני שהוא מבעיר. של יין ⁠— אין מעידין עליו, מפני שהוא מכבה. אמרו לו: תחלתו מכבה וסופו מבעיר.

A baraita states: If one fell into a blazing furnace, one may testify about him that he has died. If he fell into a boiling cauldron filled with wine or oil, one may also testify about him that he has died. In the name of R' Aḥa, they said: If he fell into a cauldron of oil, one may testify about him that he has died, because this ignites the fire even more. Through the force of his fall, oil will splash into the fire and increase the heat of the cauldron. However, if he fell into a cauldron of wine, one may not testify about him that he has died, because when wine splashes into the fire it extinguishes the fire. They said to him: At first it partially extinguishes the fire but eventually it ignites it even more, and therefore it can be assumed that he has died.

אמר רבי מאיר: מעשה באחד שנפל לבור הגדול וכו׳. תניא, אמרו לו לרבי מאיר: אין מזכירין מעשה נסים. מאי מעשה נסים? אילימא דלא אכל ולא אישתי ⁠— והכתיב: ״וצומו עלי ואל תאכלו ואל תשתו״.

§ The Mishnah stated that R' Meir said: An incident occurred involving a certain individual who fell into the Great Cistern and emerged after 3 days. It is taught in a baraita: They said to R' Meir: One does not mention miraculous acts to teach general halakha. The Talmud asks: What about that story defines it as an example of miraculous acts? If we say the fact that he did not eat or drink for 3 days and still survived is miraculous, but isn’t it written: “Fast for me, and neither eat nor drink 3 days, night or day” (Esther 4:16), demonstrating that one may survive this experience naturally?