Reference for Niddah 58:31

טבולת יום ארוך בעי טבילה

But why should she not be permitted to perform her marital duty on the twenty-first day?<span class="x" onmousemove="('comment',' Of her return. This day (the last one of the third week) must inevitably be a clean one. For even if the woman had been delivered on the very day of her return her period of childbirth uncleanness would have terminated (even in the case of a female child) on the fourteenth day, while the seven days following could be counted as the prescribed seven days following a period of zibah on the last of which she is permitted to perform ritual immersion at any time of the day and to attain to a state of cleanness (cf. Yoma 6a) for the rest of that day. ');">²⁹</span> — This<span class="x" onmousemove="('comment',' The prohibition of intercourse on the twenty-first day. ');">³⁰</span> is in agreement with the view of R. Simeon who ruled: It is forbidden to do so<span class="x" onmousemove="('comment',' To have intercourse on the seventh day after the termination of a zibah even though ritual immersion had been performed. ');">³¹</span> since, thereby, she<span class="x" onmousemove="('comment',' If she happened to suffer a discharge later in the day after intercourse. ');">³²</span> might be involved in a doubtful uncleanness.<span class="x" onmousemove="('comment',' Of zibah. A discharge on the seventh day following the termination of zibah renders void all the previous counting, since the seven clean days must be complete. ');">³³</span> But<span class="x" onmousemove="('comment',' Since on the twenty-first day she was still clean and her first discharge in the following (fourth) week occurred presumably on the twenty-second day. ');">³⁴</span> why should she not be permitted intercourse in the evening?<span class="x" onmousemove="('comment',' Following the twenty-first day. ');">³⁵</span> — This is a case where she observed the discharge in the evening.<span class="x" onmousemove="('comment',' Cf. prev. n. And similarly in the case of all the alternate unclean weeks the discharges occurred in the evenings. ');">³⁶</span> 'And she is ordered to undergo ninety-five ritual immersions: During the first week<span class="x" onmousemove="('comment',' After her return. ');">³⁷</span> she is ordered immersion every night, since it might be presumed that she gave birth<span class="x" onmousemove="('comment',' Seven days previously. ');">³⁸</span> to a male child.<span class="x" onmousemove="('comment',' So that each day of the first week might possibly be the first one after the termination of the unclean days and it is a religious duty to perform ritual immersion immediately after the unclean days had terminated. ');">³⁹</span> During the second week she is ordered immersion every night,<span class="x" onmousemove="('comment',' Cf. BaH. for a different reading. ');">⁴⁰</span> since it might be presumed that she gave birth<span class="x" onmousemove="('comment',' Fourteen days previously. ');">⁴¹</span> to a female child;<span class="x" onmousemove="('comment',' So that each day of the first week might possibly be the first one after the termination of the unclean days and it is a religious duty to perform ritual immersion immediately after the unclean days had terminated. ');">³⁹</span> and every day, since it might also be presumed that she gave birth to a male child while she was in a condition of <i>zibah</i>.<span class="x" onmousemove="('comment',' So that each day of the first week counted as the sixth of the clean days after zibah which (cf. supra n. 5) must be immediately followed (during the day-time of the following day) by ritual immersion. ');">⁴²</span> During the third week she is ordered immersion every day, since it might be presumed that she gave birth to a female child while she was in a state of <i>zibah</i>;<span class="x" onmousemove="('comment',' Cf. prev. n. mut. mut. ');">⁴³</span> and every night, because Beth Shammai follow the view they expressed elsewhere that one who performed immersion on a long day<span class="x" onmousemove="('comment',' The fourteen unclean days (after which the woman performs immersion) and the sixty-six clean days that follow (during which she is forbidden to eat terumah) are regarded as one long day on which immersion had been performed and sunset is awaited (sunset being represented by that of the eightieth day after childbirth) to complete and terminate ail traces of uncleanness. ');">⁴⁴</span> must again perform immersion [at its conclusion].<span class="x" onmousemove="('comment',' Sc. on the night following the eightieth day and preceding the eighty-first one. As every day of the third week might possibly be the eightieth, immersion must be performed on every night of that week. The same reason could, of course, be given for the necessity for immersion in the previous weeks had there been no other reasons to justify it. ');">⁴⁵</span>

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