(Mishnah): The following Nedarim are permitted:

He said 'Chulin (is) what I will eat of yours', or (what I will eat) is like pork, idolatry, hides pierced to allow removal of the heart (for idolatry), Neveilos, Tereifos, vermin, insects, or the Chalah of Aharon and his Terumah.

If one told his wife 'you are [forbidden] to me like my mother,' we permit it through a different Pesach (than his mother's honor), lest he take the matter lightly.

If one said 'Konam that I sleep', or 'that I will speak, walk, or have Bi'ah with you (my wife)', "Lo Yachel Devaro" applies.

If one swore not to sleep, speak, or walk, he is forbidden.

(Gemara): '[Ish Ki Yidor Neder] la'Shem' teaches that one forbids himself only [through Hatfasah] in something that is of Hash-m [due to a vow].

Tana d'Veis Rav argues. [He taught,] what is the source for Nedarim, that they are permitted to you from Shamayim, and [some] people conduct Isur (they think that they take effect), that one [who knows that they are permitted] may not vow and annul [it]? It says "Lo Yachel Devaro" - he may not make his words profane.

We would have thought that this refers to 'ha'Korban' - it is like 'Shevu'ah', but all other matters, no. [The verse] comes to tell you even all other matters - "Le'esor Isar Al Nafsho." (We explained this like LEV YERUSHALAYIM citing GILYON EFRAYIM. YEFE EINAYIM (15a) - it was known that people conducted Isur with the matters in our Mishnah.)

Some teach 'Al Nafsho', but one cannot [forbid] others. And some teach [one can forbid] even others.

Assumption: The one who says 'Al Nafsho', but not on others, he cannot forbid others' property to others. And the one who says even on others, this is to forbid his property to others. However, he cannot forbid others' property to himself. (We explained this like OHR SOMAYACH Hilchos Shevu'os 5:4.)