Midrash for Bava Metzia 55:21
אמר רבינא שמע מינה כי מכריז גלימא מכריז דאי סלקא דעתך אבידתא מכריז בעינן למטפי ליה חד יומא לעיוני במאניה אלא שמע מינה גלימא מכריז שמע מינה
R. Gamaliel said: On the seventh, which is fifteen days after the Festival,<span class="x" onmousemove="('comment',' 'The Festival' without any further designation, always means Tabernacles, which lasted from the 15th to the 22nd of Tishri inclusive, Tishri being the seventh month of the year. ');"><sup>19</sup></span>
Sifrei Devarim
"until your brother inquires concerning it": Would it enter your mind to give it to him without his giving identifying signs? Why, then, is it written "until your brother inquires concerning it"? (The meaning must be, then,) "until you make inquiry concerning your brother" (to ascertain) whether or not he is a deceiver, (this being a possible construction of the words in the Hebrew.)
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