Reference for Niddah 29:4

אמר להם כך פרשו חכמים ביבנה

'Thus', he said to them, 'did the Sages at Jamnia enunciate the ruling: If the woman did not delay more than the time in which she can descend from the bed and wash her face,<span class="x" onmousemove="('comment',' Sc. the time elapsed was no longer than that during which she can examine herself while still in bed. ');">⁴</span>

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