Commentary for Niddah 19:5
אמר רב כהנא אמר רב גידל אמר רב
— R. Kahana citing R. Giddal who had it from Rab replied: After the first time it suffices for her to reckon her uncleanness from the time she observed the discharge but after the second time she causes uncleanness retrospectively for twenty-four hours or from her previous examination to her last examination. Whose view does this<span class="x" onmousemove="('comment',' The ruling that after the second time she is already in a condition of presumptive menstruation. ');"><sup>4</sup></span>
Explore commentary for Niddah 19:5. In-depth commentary and analysis from classical Jewish sources.