Nedarim

GEMARA. Let [the Mishnah] teach 'they are consecrated!'  — Because the second clause must state 'THEY CANNOT BE REDEEMED,'  the first clause also states, 'THEY CAN BE REDEEMED. How was the vow made?  — Amemar answered: By saying, '… if they are not cut down to-day'; and the day passed without their being cut down. If so, why teach it: is it not obvious? — The need for teaching it arises e.g., when a strong wind is blowing.  But the same is taught with respect to a garment: and does a garment stand to be burnt? — Even so; e.g., when a fire has broken out. So here too [in respect of plants], a strong wind is blowing; and I might think that he thought that they would not be saved, and therefore vowed.  Hence the Mishnah informs us [that the vow is binding]. LET THESE SAPLINGS BE KORBAN etc. [Can they] never [be redeemed]?  — Said Bar Pada: If he redeems them, they revert to their sanctity; if he redeems them again, they again revert to their sanctity, until they are cut down.  When cut down, he redeems them once,  and that suffices. 'Ulla said: Having been cut down, they require no further redemption.