Reference for Niddah 145:36

אימא ביממא תהוי זבה בליליא תהוי נדה

does convey uncleanness to the man who had intercourse with her, is there not more reason that the man who does contract uncleanness on account of observation as on account of days<span class="x" onmousemove="('comment',' A man is confirmed as a zab irrespective of whether he observed three discharges on three consecutive days respectively or all the three discharges on the same day (cf. B.K. 24a). ');">³⁰</span>

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