Nazir

If this is [the meaning of the Mishnah], how is the subsequent clause to be understood, viz.: R. JUDAH SAID: EVEN THOUGH BETH SHAMMAI DID AFFIRM [THAT THE FORMULA WAS OF SOME EFFECT], IT WAS ONLY WHERE HE SAYS, AND SHALL BE FORBIDDEN TO ME AS A SACRIFICE ETC.'? Does [his vow] then, attach to the heifer at all?  — [It must be] therefore, that he said, for example, 'I undertake a nazirite vow [to abstain] from its flesh if it should not stand up,' and it then stands up of its own accord. In Beth Shammai's opinion, the substance of this man's VOW is his intention to cause [the heifer] to rise by force, and this he has not done, whereas according to Beth Hillel, the substance of his vow lies in the fact that [the heifer] was recumbent, and it has risen. But are Beth Hillel of the opinion that if [the heifer] does not stand up, [the man] becomes a nazirite? Have they not said that [by a vow to abstain] from flesh, he does not become a nazirite?  — They were arguing on the premises of Beth Shammai. In our opinion, he does not become a nazirite even if [the heifer] should not stand up, but you who say that he does become a nazirite  should at least admit that the substance of his vow lay in the fact that [the heifer] was recumbent, and it has since risen. Beth Shammai reply that this is not so, and the substance of the man's vow lay in his intention to cause [the heifer] to rise by force, and this he has not done.