Reference for Gittin 150:2

רב אשי אמר הא מני רבי היא דאמר רב הונא אמר רב כל האומר על מנת כאומר מעכשיו דמי

No, said R. Ada b. Ahabah: the reason [why she is divorced] is because the condition and the act relate to the same thing. R. Ashi, however, said: The authority followed here is Rabbi; for R. Huna has said in the name of Rabbi: The formula on condition' is equivalent to 'from now'.<span class="x" onmousemove="('comment',' [Contrary to what has been assumed hitherto (p. 357, n. 7) the Get therefore, is valid retrospectively, when she returns the paper, the gift of which is regarded as a temporary one.] ');">²</span>

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