Reference for Niddah 53:17

ל"ג לשליא כ"ג לולד

of the ninth month,<span class="x" onmousemove="('comment',' The eighth month consisting of twenty-nine or thirty days together with the odd days of the seventh and the ninth months (cf. prev. n. but one) making up the interval of thirty-three days. ');">¹⁵</span>

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