Reference for Bekhorot 116:1

ונוטל אחד מן האלולין והשאר פטורין ממה נפשך

He can also take one from those born in Elul<span class="x" onmousemove="('comment',' Not deliberately taking one out, as this would be forbidden, but where, for example, he numbers them either in a crouching position or standing, when be is able mentally to fix upon one from those born in Elul as tithe.');">¹</span>

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