מתניתין דלא כי האי תנא, דתניא רבי נתן אומר, בית שמאי אומרים: נדור ונזיר, ובית הלל אומרים: נדור ואין נזיר. בית שמאי סברי לה כרבי מאיר וכרבי יהודה, ובית הלל סברי לה כרבי יוסי.
§ The Talmud comments: The Mishnah is not in accordance with the opinion of this tanna. As it is taught in a baraita: R' Natan says that if one says: I am hereby a nazirite and therefore will refrain from dried figs, Beit Shammai say: He has rendered dried figs forbidden to himself by a vow, and he is also a nazirite; and Beit Hillel say: He has rendered dried figs forbidden to himself by a vow, but he is not a nazirite. According to R' Natan, Beit Shammai hold in accordance with the opinion of R' Meir that a person does not utter statements for naught and that he becomes a nazirite as soon as he says: I am hereby a nazirite; and he explains the opinion of Beit Shammai as R' Yehuda does, i.e., that one in this situation has vowed that dried figs are forbidden to him, since the rest of his statement also has significance. And Beit Hillel hold in accordance with the opinion of R' Yosei that one is held to the conclusion of his statement, and he has therefore vowed that dried figs are forbidden to him.