Reference for Bekhorot 114:26

באחד באלול ראש השנה למעשר בהמה

BEN AZZAI SAYS: THOSE BORN IN ELUL ARE TITHED BY THEMSELVES.<span class="x" onmousemove="('comment',' And neither with those born in Ab nor for those born in Tishri, as there is a doubt whether the New Year for tithing is the first of Tishri or the first of Elul.');">¹⁹</span>

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