Reference for Niddah 34:8

נמצא מן הלול ולפנים ספקו טמא מן הלול ולחוץ ספקו טהור

IS CLEAN. IF BLOOD IS FOUND IN THE ANTE-CHAMBER, AND THERE ARISES A DOUBT ABOUT ITS CHARACTER,<span class="x" onmousemove="('comment',' Sc. whether it originated in the uterus or urinary bladder. ');">⁸</span>

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