(Mishnah): [The Mudar] takes and eats. R. Yosi forbids.

What is the reason of R. Yosi? It is because his vow preceded his Hefker, but if his Hefker preceded his vow, no (he would not forbid).

Version #1 - Question (to the Amora R. Yosah): [We said that] it is because his vow preceded his Hefker. What is the difference between [this, and when] his Hefker preceded his vow?

Note: The Yerushalmi freely interchanges the names Yosi, Yosa and Yosah. In this Sugya, we will use 'R. Yosah' to refer to the Amora.

Answer (R. Yosah): It did not cross his mind to forbid what he made Hefker.

(R. Aba citing R. Chiyah citing R. Shimon ben Yehotzadak): One who makes his field Hefker to 10 people, he cannot retract.

(R. Yosah): This is like R. Meir.

Question: R. Yonah said, so they asked in front of me - Hefker in front of an individual, no (R. Meir holds that it is not Hefker)? The Mishnah says, [the Mudar] takes and eats; R. Yosi forbids!

Counter-question (R. Yonah): Rather, than challenging R. Meir, challenge R. Yosi! (Even if R. Aba's teaching is like R. Yosi, it is difficult. Even R. Yosi permits when the Hefker preceded his vow, even without 10!)

Answer: [R. Yosi holds that Hefker must be in front of three. He permits when the Hefker preceded his vow, for] it did not cross his mind to forbid what he made Hefker (even if he is not aware that his Hefker did not take effect).

Note: 'Amar Lun (he told them)' is difficult. It seems that the ones who asked said this, to justify why they asked according to R. Meir. Perhaps it should say 'Amru Lei.' (PF)

Answer (R. Mana): What does it mean [when R. Yosi discusses Hefker] 'to three'? It is in front of three. What does it mean [when R. Meir discusses Hefker] 'to 10?' [He is Mafkir] of 10 (he authorizes any of the 10 to take it. It is Hefker even for others to take.)

R. Yosi said, if he was Mafkir in front of two, he can retract and it is obligated in Ma'aser. In front of three, he cannot retract and it is exempt from Ma'aser. (Therefore, the teaching of 'to 10' must be like R. Meir. We explained this like NO'AM YERUSHALMI.)