Reference for Gittin 59:2

ההוא דאמר אי לא אתינא עד תלתין יומין ליהוי גיטא אתא ופסקיה מברא אמר להו חזו דאתאי חזו דאתאי אמר שמואל לא שמיה מתיא

A certain man once said: This shall be a Get if I do not come within thirty days. He did come, but could not get across the river, so he cried out, 'See, I have come, see, I have come.' Samuel said: This is no 'coming'.<span class="x" onmousemove="('comment',' Because allowance is not made in the case of a Get for unforeseen circumstances, or, if it is, this circumstance, not being unusual, should have been provided for. ');">¹</span>

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