Chulin 129 חולין דף קכט

So we already know that in order for something to be makabal tomas echlin, it needs to be considered echlin.

Now the first step in that process is makhshava, the person has to want it to be food, and this is especially relevant to meat, which is either partially or fully detached from an animal, which in its current state is not necessarily considered echlin yet.

So Gemara tells us, cut off a kazais of meat from Eivor Menachai.

Now, we've already learned above that full Eivor Menachai is Tamei, but a piece of meat separated from it is Na.

Now, the writer is telling us that a person cut off a piece of meat from an Eivor Menachai, it actually depends.

If he cut it off, then he says, you know what, I want it to be considered Eichlin, so it's Tahr, because it has nothing to do with the Eivor anymore.

However, if he thought about it, I'm about to cut a piece of meat off of this Eivor Menachai, and I want it to be food, and then he cut it, So Tomei, it is Tomei.

Now the question is, why is it Tomei? And this is brought out from a story.

Rav Asi didn't go to the Beis Medrash one day.

He encountered Rav Zehra.

Amaralei, he asked him, My Amar Beis Medrash, what do they say in the Beis Medrash today? So Amaralei, Rav Zehra responded to him, What's bothering you that you're asking me that? So Amaralei, Rav Asi told him, that if you thought about this piece of meat, then they cut it off of the Avram and Achai, so automatically it's Tomei.

The question is, Kachav Tassim Rav Atap, Tomei's base is Starmi.

Now, the only way that this piece of meat could be Tomei is because it came from the Avraham Menachai.

But it's not like it touched the Avraham Menachai after he cut it off.

The part which was cut off Off of the Eivor, that part was technically touching the Eivor Menachai, but that's only Beis HaStarm.

It's in a hidden spot.

You can't see it.

And that really is not Metamei.

So why should this piece that was cut off be Tomei? Asked Rav Asi.

So Amulei, Rav Zeir, told him, I had that same question.

And I asked this Rav Abram Amal.

He said in the fourth perek that Tomei's Beis HaStarm is Metamei.

We had learned about this.

This is referring to a pregnant animal.

Its ubar stuck its leg out before shechita.

Then the animal was shechted.

The leg was then cut off.

That leg is Tamei.

And Mimela, the rest of the fetus, is also Tamei.

And that's because it touched the leg.

And that's Besastarim.

And so this Breisa is Shitzisra Meir.

However, Amri Leir of Asi told the Rebbe Zehra, V'lav Zim'in Sagin, Amra Kamay, didn't he already say this many times to me? Amri Leir, and I told him, I told him about Ramamal, that Shani Leir of Meir, Ben Toma de Bayachshir, Ben Toma de Leibayachshir, The Rav Meir himself differentiates between Tumah, which requires Heksher, versus that which doesn't require Heksher.

That leg of Rav Meir's sheeta in the fourth perek didn't need Heksher.

It became Mokshar through the shechita of the mother.

As opposed to here, the busser still needs Heksher, as Rav Meir said explicitly in the Mishnah, so Rav Abram Amal is not giving me a good answer to my question.

Rav Arava, Rava tries to answer this.

U'maikosher, what's the problem? Tumah b'shochshar.

Maybe he's referring to where this Avram HaNechai was, Mokshar l'kabel Tumah, Mimela, the piece that's cut off of it.

automatically is Tomei because of Tumah's basis, Starim.

However, Amali Rabba Ravchanan Rava, now Rabba Ravchanan, asks Rava a pretty strong question.

Lamali Heksher, why do you even need Heksher in this case? It becomes Tomei with a strong Tumah because of the father.

In other words, this is Avram and Achai, which is Tumah Hamura or Ava Tomah, and we've already learned earlier that Tumah Hamura does not require Heksher.

Memela, the piece that was cut off, So this main ever, the ever menachai, it's not considered food.

The whole package of baser gidim and atzalmos is really just considered aids.

It's wood.

Now that a piece of meat was cut from it, Rashi calls this This is something brand new.

Now we have something that's considered ochlin, food, and food needs heksher.

That's why we have to have heksher of this piece, says So now we can understand why Rav Asi was bothered by the answer that Rebbe Ze'er had related to him from Rav Abraham Amal.

But now focusing on this line that Rav Ajah said, And it's in essence telling us that what we're looking at now is completely different than what was before.

And therefore, its current status in Din doesn't contradict the previous Din it had.