Reference for Niddah 3:13

<big><strong>גמ׳</strong></big> מאי טעמיה דשמאי

IT SUFFICES [TO RECKON HER PERIOD OF UNCLEANNESS FROM] THE TIME SHE DISCOVERS THE FLOW'? IF SHE WAS SITTING ON A BED AND WAS OCCUPIED WITH RITUALLY CLEAN OBJECTS<span class="x" onmousemove="('comment',' In the preparation, for instance, of foodstuffs. ');">¹²</span>

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