Reference for Rosh Hashanah 29:1

מאן שמעת ליה דאזיל בתר לקיטה ר"ג וקתני שבט

Now which authority is reported to make plucking the determining factor? Rabban Gamaliel; and he says here Shebat?<span class="x" onmousemove="('comment',' And not Tishri.');">¹</span>

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