Question: What is his source that he acquired due to his Reshus? Perhaps he acquired due to Meshichah, for Meshichah helps with the seller's Kli, like it explained above (85b)!

Answer: Here we infer that he acquired due to his Reshus, like the Rashbam explained above, for "he unloaded them and entered them into his house" connotes whether the seller or buyer did so.

Question: Also without unloading them, since he entered them, he should acquire. [The animal] should be Batel to the buyer's Reshus!

Answer (Ri): Only a Kli is Batel to a Reshus, but an animal is not.

Implied question: Below (151a), it asks about a bundle of documents "he did not do Meshichah!"

[Poor] Answer #1: There were so many documents that it is not normal to lift them.

Answer #2: "Mashach" is not precise. Rather, it means that he did not lift them.

Observation: He does not ask according to the version that answers in Kesuvos (31b) that he put his hand below three Tefachim and received [the stolen object]. He did not acquire due to Meshichah, rather, due to Chatzer, and his hand is like his Chatzer;

Rather, he asks according to the version there that he acquires due to Meshichah.

Question: What was the Havah Amina that we discuss a wallet that can be lifted? If so, how is he liable for Shabbos? This is not the way of Hotza'ah [to Reshus ha'Rabim] for it!

We ask like this in Kesuvos (31b). If it is small, this is not the way of Hotza'ah! Rather, it is medium size.

Answer #1: There are matters that are considered the way of Hotza'ah regarding Shabbos, but even so, regarding Kinyan, they are acquired only through Hagbahah, for it is normal to lift them.

Answer #2: He was dragging it through a tunnel. This is the way of Hotza'ah.

Answer #3: He could have said "also according to you (the Makshan, that you hold that it that can be lifted, this is difficult)"!

Question (Rashba): Why don't we establish it to discuss Kelim not normally lifted? Also they are acquired through Hagbahah!

Source: It connotes like this above. We establish [the Beraisa] to discuss [a wallet] that needs a rope, and it teaches that he was already liable for theft, i.e. through Hagbahah.

Explanation: Granted, if we establish the Reisha to discuss small loads, and similarly flax is small loads, and we require Hagbahah, because Meshichah is not normal for it at all...

However, other matters, even though Hagbahah is normal for them, they are acquired also through Meshichah.

However, now that we establish it to discuss big loads, why isn't flax acquired until he moves it, i.e. Hagbahah? It is normal to do Meshichah, since it is big loads!

Explanation #1 (Rashbam): He could not ask from the Seifa, which teaches "in the buyer's Reshus once the seller accepted on himself, [the buyer] acquired, for we can establish it when the measure was full.

Rebuttal (Ri): We could not establish it when the measure was full, for if so, it should explicitly teach the clause of a middleman, and teach that in Reshus ha'Rabim and in a Chatzer not of both of them and in the buyer's Reshus...

Explanation #2: However, he did not want to ask from the Seifa, since he can ask from the Reisha.

Question (R. Chaim): Rav Kahana did not teach this. It is a Mishnah in Menachos (87b)!

Answer (Ri): In Shabbos (78b), a Mishnah says that [the Shi'ur to be liable for Hotza'ah of] plaster is to make Andifi, and Rav Kahana (80b) explained that this is notches, like the Mishnah teaches, that there were notches in the Hin...

This is why it brings here Rav Kahana. He teaches that even in Chulin measures, they make [notches]. And this is why one is liable on Shabbos for the amount to make notches;

However, from the Mishnah in Menachos, we find only that there were notches in Kodesh measures.

Implied question (Rashba): A Mishnah (Bava Metzi'a 65a) teaches that we may increase rental [for a tenant who will pay only later], but [correspondingly] we may not increase the sale price!

Answer (Rashba): The Heter to increase rental is when [the tenant] enters the house immediately;

If not, one may not increase, for it looks like Ribis, like we say here.