עדיות ה׳:ד׳ - ה׳:ה׳

דם יולדת – that she delayed a week for [the birth of] a male and two weeks for female, and did not immerse [in a Mikveh].

בית שמאי אומרים כרוקה וכמימי רגליה – which ritually defile moist but do not ritually defile as dry. Even her blood defiles moist but does not defile dry, and is not considered like the blood of a menstruant woman which defiles [both] moist and dry.

ובית הלל אומרים מטמא לח ויבש – all the time that she has not immersed [in a Mikveh], it is considered like the blood of a menstruant woman, and even though it is amidst the days of her purification.

ומודים ביולדת בזוב – that she needs to count seven clean days like the law of all the rest of those with a flux, for if she did not count nor immersed [in the Mikveh], and saw blood during the days of purification, which defiles [both] moist and dry, for it is considered like the blood of someone with a flux all the time that she didn’t count or immerse [in the Mikveh].

חולצות ולא מתיבמות – for since both of them are tied by their interdependence of a childless widow and her late husband’s brothers (i.e., they cannot marry otherwise until released from their dead husband’s brother) to this one and to that one first and if he (i.e., one of the brothers) marries the wife of a brother who died without issue, he strikes against the sister of his obligated leviratical relation who is like his wife.

משום ב"ש יקיימו וב"ה [אומרים] יוציאו – in the Gemara in [Tractate] Yevamot 28a in the chapter “Four Brothers” (chapter three), they reverse it, as the School of Shammai states that they should release her, and the School of Hillel states they should uphold it [and remain wed], and such is the Halakah that if he went ahead and married [the two sisters], they may remain wed.