(Mishnah): If Reuven piled up his Peros in Shimon's field without permission, and Shimon's animal ate them, Shimon is exempt;

If the animal was damaged, Reuven is liable.

If Reuven piled them up with permission, Shimon is liable.

(Gemara - R. Yitzchak): [In the Seifa he is liable, for Peros] piled up in a field are like Kelim in a house. (All agree that in a house, Stam permission means 'enter, and I will guard it.')

Rebuttal (R. Yosi bei R. Bun): (We need not say so.) We can say that our Mishnah discusses an enclosed field with a lock. (It is like a house, but a Stam field is not, even if he piled up with permission.)

(Mishnah): If Reuven sent a fire with a Cheresh, lunatic or child, he is exempt b'Yedei Adam, but liable b'Yedei Shamayim.

If he sent a fire with a Pike'ach (adult with intelligence), the Pike'ach is liable.

If Shimon brought the flame, and Levi brought the wood, Levi is liable;

If Shimon brought the wood, and Levi brought the flame, Levi is liable;

If Yehudah came and blew the flame, he is liable;

If the wind fanned the flame, all are exempt.

(Gemara - Chizkiyah): [The Reisha exempts one who sent] a coal [with a Cheresh, lunatic or child], but if he sent a flame, he is liable. (He holds that one is liable for fire only because it is his property. A coal itself would not damage, if not for the action of the Cheresh, lunatic or child.)

(R. Yochanan): A coal and a flame are the same. (He obligates for fire like for one's arrows. Even if he sent a flame, it is as if the Cheresh, lunatic or child damaged.)

Question (against Chizkiyah): (If he sent a fire with a Pike'ach, why is the Pike'ach liable? The fire is not his. Do not say that a Shomer is in place of the owner. He was not a Shomer. He was sent to damage!) If one saw his friend's coal rolling and he did not extinguish it, is he not exempt?!

Answer: The case is, Reuven gave to him a Hefker coal or a Hefker flame. You cannot learn anything from it. (When the fire has no owner, Chizkiyah agrees that the one who burned with it is liable. We explained this like NESIVOS YERUSHALAYIM.)

Some teach [that our Mishnah says "Libah'', and some teach "Nivah''. (Both of them mean 'he blew.')

The one who teaches "Libah'', this is because it says "b'Labas Esh.'' The one who teaches "Nibah'', this is because it says "v'Hayah b'Libi k'Esh Bo'eres.'' (Speech is called Niv Sefasayim. The verse teaches that Yirmeyah needed to speak and let out the fire. Also here, his breath fanned the fire.)

If the wind fanned the flame, all are exempt.

There (in Bavel) they say that our Mishnah discusses a wind of Ones, but if it was a common wind, he is liable.

(R. Yochanan and Reish Lakish): Even for a normal wind, he is exempt. Sometimes it comes, and sometimes it does not come. (He was not obligated to be concerned lest it come.)