Reference for Rosh Hashanah 60:1

בשיטת ר' יהודה אמרה דאמר (ויקרא כג, יד) עד עצם היום הזה עד עצמו של יום וקסבר עד ועד בכלל

based his rule on the view enunciated [later] by R'Judah, who said: [Ye shall neither eat bread.] until th selfsame day:<span class="x" onmousemove="('comment',' Lev. XXIII, 14. ouh ka unmg');">¹</span> this means, until the termination<span class="x" onmousemove="('comment',' Heb. lit., 'the very self of the day'.');">²</span>

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