נדה ט׳:ח׳ - ט׳:ט׳

כל אשה שיש לה וסת דיה שעתה – above in the first chapter [Mishnah 1] this is taught (and also in Tractate Eduyot, Chapter 1, Mishnah 1), but there we are speaking of regular dates of menstruation as for example from the fifteenth day [of one month] to the fifteen day [of the next month], or from [the first day of] the month to [the first day] of the month, but here we are speaking of regular premonitory symptoms of approaching menstruation that are in her body, for whenever that these symptoms will appear in her, it is customary to see them, but there is no fixed time to see them.

מפהקת (open the mouth/yawn) – there are those who interpret/explain that she opens her mouth with all of her strength, ALTHAREI in the foreign tongue, and there are those who explain/interpret that she stretches out her arms and body, ASHTARNE KALAR in the foreign language.

בפי כרסה (at the opening of her stomach)- corresponding to her navel.

שפולי מעיה (lower part of the abdomen) – the womb.

ושופעת– The Gemara (Tractate Niddah 63b) explains that she discharges impure blood within pure blood, as for example, that she is used to seeing pure blood initially, that is blood that is not from the five [kinds] of impure blood (see Tractate Niddah, Chapter 2, Mishnah 6 for the impure types of blood), and afterwards the impure blood And this also is a fixed period. And whenever she sees impure blood after pure blood, her set time is sufficient for her.

צמרמורת (feverish flushes) – it is the language of (Psalms 119:120): “My flesh creeps from fear of You;/סמר מפחדך בשרי [I am in awe of your rulings].” ARITZMINT in the foreign tongue.

אוחזין אותה – she is trained to be at every time that she sees (i.e., experiences) this.

וכן כיוצא בהן – from the rest of the signs that the women who sees blood are turned to be like this, as for example, that her head is heavy upon her, or that trembling or shaking grabs hold of her, or pain in the heart, and similar kinds of things. If she established [the presence of the one of these token symbols of her period] three times, this is a fixed period.

היתה למודה להיות רואה בתחלת הוסות – that are in her body. As for example, at the beginning of the sneezing and the yawning and similar things.

אף ימים ושעות וסתות – the hours are also fixed periods. And we follow after them. For if she was accustomed to see [signs] from the twentieth day [of the month] to the twentieth day [of the month] and from the sixth hour to the sixth hour, she is permitted to engage in sexual relations on the twentieth day [of the month] until the sixth hour, but she worries/suspects only at the sixth hour. If the sixth hour passed and she didn’t see [any signs], she is permitted to engage in sexual relations all that entire day.

היתה למודה להיות רואה עם הנץ החמה – the conclusion of this matter of Rabbi Yossi.

אינה אסורה אלא עם הנץ החמה – but all night she engages in sexual relations. But if sunrise had passed and she didn’t see [any signs], she engages in sexual relations the entire day, for especially the hour of her period is when she worries, but not further.

רבי יהודה אומר כל היום שלה – that is to say, she is permitted to engage in sexual relations all throughout the day, from when sunrise had passed and she didn’t see [any signs], but the entire night that is prior to sunrise of her period, she is forbidden to engage in sexual relations. But with sunrise, as it is taught, that is that she is used to seeing sat the end of the night prior to the arrival of the beginning of the day, but we prohibit her [from sexual relations] the entire time of her period. It is found that she is prohibited all the night which is the time of her period. And the Halakha is according to Rabbi Yehuda.