Mishnayos Eduyos Perek 8 Mishnah 3

אלמנת עיסה – one family that was mixed up with someone who was doubtful for the priesthood on account of his father’s illegitimate connection. All the children of that family are doubtful if he was that doubtfulness that was mixed up with them or not. And a woman who married one of the children of that family, and her husband died, is called the widow of one belonging to a family suspected of containing an alien admixture, that is like the examined and mixed family [suspected of containing an alien admixture], so too this particular woman is mixed from doubts – doubt if her husband was that doubtful one for the priesthood on account of his father’s illegitimate connection, according to the truth. Rabbi Yehoshua validates her for the priesthood, because there is here a compound uncertainty and is judged leniently. But Rabban Gamaliel holds that even though generally, a compound uncertainly which is judged leniently, here is different, for they made a preference for pedigrees.

העיסה כשרה לטמא ולטהר – that is to say, that a family that became mixed through someone doubtful for the priesthood on account of his father’s illegitimate connection, behold, she is presumption of being fit like the rest of the families of legitimate descent, and like that the rest of the families say: “this one is ritually impure” and distance themselves from her, and “this one is pure” and they draw her close, so is this family that had become mixed up beyond recognition as a result of someone doubtful for the priesthood on account of his father’s illegitimate connection, and we cannot say for since that it become so mixed up beyond recognition, we don’t any longer to check when women marry -which one was defiled and which one is pure, in order to distance the impure one and to draw close the pure one.

קבלנו עדותכם – you are believed in our eyes and we believe that such is what you heard.

שלא להושיב ב"ד על כך – to permit the widow of one belonging to a family suspected of containing an alien admixture ab initio.

הכהנים שומעים לכם לרחק – if you would say that she is forbidden.

אבל לא לקרב – if you would say that she is permitted. And the Legal decision is that a woman who married one of that family, and her husband died, is called the widow of one belong to a family suspected of containing an alien mixture, and she is forbidden to marry into the priesthood ab initio, and if she married, she cannot be divorced.