Comentario citado sobre Génesis 30:21

ושאול בן הכנעני, “as well as Sha-ul, son of the Canaanite.” Ibn Ezra explains this puzzling statement by saying that this grandson of Yaakov was the only one born by a Canaanite mother, as none of his other sons married girls of Canaanite parentage. Rashi explains the phenomenon as an allusion to this Sha-ul being a son of Dinah who had been raped by the Canaanite Shechem. If so, we are confronted with another difficulty, i.e. how could Shimon marry a sister by his own mother? According to a Midrash [I have not found such a version. Ed.] the problem is resolved as it is presumed that Dinah’s fetus grew predominantly in Rachel’s womb. [The Torah reports Leah only as having “given birth” to Dinah, not as having been pregnant with her. (Genesis 30,21)]

מזבול From the habitation. Comp. יזבלני will dwell with me (Gen. 30:21). It is a repetition of the preceding idea in other words.