My question is that tosfos on top of 2b asks that why does the gemara bring a passuk from nach that kesef is a kinyan it should have brought a passuk from the torah? So tosfos answers that the reason why we bring this passuk is because it wants to teach us about a kinyan of a field. Now first of all I'm not sure what that means. and 2nd of all why do we have to bring a passuk about a field as long as we find any passuk which uses the loshon of kinyan by kesef that should be enough of a reason why we use a Loshon kinyan in our Mishna so why does tosfos say we are bring a passuk of ??? but any passuk which uses by kesef a Loshon kinyan should also be fine?
Many thanks
Benzi
Benzi, London
It seems to me at the moment (I got this idea partly from the Atzmos Yosef DH Gemara veKicha) that the pshat is like this. We learn in the Mishnah below 26a that fields can be acquired through money, deed of sale, or chazoka. However we do not yet know the source from the Torah for all of those 3 ways. It is possible to think at the moment that there is no kinyan of kesef mideoraisa for a field. It could be that the only way to acquire a field is through a deed of sale, for instance. That is why Tosfos writes that it wants to teach us a kinyan of a field, because otherwise we would not know for sure that the field bought by Avraham could be bought by money.
I will have to think more about this question, bs'd.
Chodesh Tov and Besoros Tovos!
Dovid Bloom
Follow-up reply:
I looked again at the above and I think it is correct but I found also a different explanation, in Otzar Hachochmah, in a sefer by the name of Meir Derech, on Kidushin.
He says that the reason that Tosfos writes that the Gemara wants to cite a verse about kinyan for a field, is because Tosfos is consistent with what he writes above 2a DH veKesef that the Gemara had to cite a proof that the Kesef from which Kidushin with a woman is derived, is called a kinyan.
Since the Kesef from which Kidushin with a woman is derived is stated in connection with a field it follows that the Gemara wanted to cite a verse connected with a field.
Good Shabbos
Dovid Blooom
PS Just as an anecdotal note. I remember that once I went to the house of Dayan Kaplan zt'l, of the London Beis Din, to ask a question, and there was a copy of sefer Atzmos Yosef on his table!