Reference for Rosh Hashanah 18:1

כאילו התענה תשיעי ועשירי

as if he fasted on both the ninth and the tenth days.<span class="x" onmousemove="('comment',' Because the eating and drinking on the ninth day is called in the text 'fasting'.');">¹</span> Our Rabbis taught: It is a Jubilee<span class="x" onmousemove="('comment',' Lev. XXV, 11.');">²</span> - 'A Jubilee'<span class="x" onmousemove="('comment',' Added by Bah.');">³</span>

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