(Mishnah - R. Eliezer): One may be Me'arev or Mishtatef with anything except for water and salt;

R. Yehoshua says, an Eruv must be a loaf. Even if a partial loaf is the volume of a Se'ah (12 liters), one may not be Me'arev with it;

Even if a loaf is the volume of an Isar (a small coin worth about eight Perutos), one may be Me'arev with it.

One may give money to a grocer or baker [who lives in the same Mavoy] to acquire [wine or bread] for [Shituf or] Eruv. R. Eliezer says so;

Chachamim say, the money does not acquire for him;

[Chachamim] agree that one may give money to anyone else to acquire for him. (He makes him a Shali'ach to be Me'arev for him.)

[It does not work through a baker or grocer, for] one can be Me'arev for another only with his Da'as (knowledge).

R. Yehudah says, this applies only to Eruv Techumim, but one may make Eruv Chatzeros for someone even without his Da'as;

This is because Zachin l'Adam she'Lo b'Fanav, v'Ein Chavin l'Adam she'Lo b'Fanav. (In one's absence, others may do for him Zechus (what is totally advantageous), but not Chov (what has a detrimental side).)

(Gemara - R. Avahu citing R. Yochanan): (One may give money to anyone else to acquire for him.) This shows that mid'Oraisa, coins acquire [Metaltelim].

Question: If so, even if he comes [and gives money] to a grocer [it should help]!

Answer: [A grocer] is different. We are concerned lest he forget and spend [the coins and not be Me'arev for him].

(R. Acha citing R. Chinena): My father did not say so. Rather, Chachamim say, the money does not acquire for him. This shows that mid'Oraisa, coins do not acquire [Metaltelim].

Implied question: [Why do Chachamim] agree about anyone else, that his coins acquire for him?

Answer: Here (in this case), a grocer is Mezakeh through someone else (the one who received the coins does Meshichah on behalf of the one who gave the coins. We explained this like PNEI MEIR, GILYON HA'SHAS.)

(Mishnah): One can be Me'arev for another only with his Da'as.

(R. Yitzchak ben Chakulah citing R. Yudan Nesi'a): We may be Me'arev for someone Bal Korcho (against his will).

Note: We explained this like HAGAHOS R. DINAR. Our text is difficult, for here we explain why R. Meir requires Da'as (since the reason for Eruv and Shituf together is lest the law of Eruv be forgotten - PNEI MEIR), and below we ask why he does not hold that Zachin l'Adam she'Lo Befanav!

Support (Beraisa #1): Bnei Mavuy can force each other to make a Lechi or Korah.

Question (Beraisa #2): If they told someone to be Me'arev, and he does not refuse, we are Me'arev for him without his Da'as (consent). If he refuses, we do not force him.

Answer #1 (R. Yudan): Beraisa #2 is like R. Meir (the first Tana of our Mishnah, who requires Da'as).

Answer #2 (R. Yosi bei R. Bun R. Yudan): It is like everyone. The case is, [he refuses because] he is a Tzeduki. (He does not believe in Eruv, so his Eruv does not help.)

Question (Beraisa): One who forgot and was not Me'arev, whether he was Shogeg or Mezid, he forbids. R. Meir says so;

R. Yudan says, if he was Mezid, he forbids. If he was Shogeg, he does not forbid.

Summation of question: If he was Mezid, why does he forbid? We can be Me'arev for him Bal Korcho!

Answer: It is a fine [that he forbids].

Question: If so (it is a fine), he should be forbidden, and his colleague (the others) should be permitted!

Answer: Since they could be Me'arev (without his Da'as), and they were not Me'arev, we fine them.

Question: Does R. Meir not hold that Zachin l'Adam she'Lo b'Fanav, v'Ein Chavin Lo [she'Lo b'Fanav]?

Answer: R. Meir holds that this is not a Zechus. Ploni does not want his colleague to enter Ploni's house without his Da'as.

(R. Ba brei d'R. Papi citing R. Chama bar Chaninah): A case occurred in which a woman was Me'arev for her mother-in-law without her Da'as. The case came in front of R. Yishmael b'Rebbi Yosi, and he wanted to forbid;

R. Chiyah (to R. Yishmael b'Rebbi Yosi): I heard from your father - whatever you can be lenient in Eruvin, be lenient.