Is it permissible for a woman to marry her first husband's son?

The wife of one's father is forbidden to his son, for Allah, the Almighty, says: (And do not marry those [women] whom your fathers married, except what has already occurred. Indeed, it was an immorality and hateful [to Allah ] and was a evil way.) The term "wife of one's father" refers to his wife with whom he has concluded a valid marriage contract, whether he has consummated the marriage or not. The word "father" here includes the father of the mother and the father of the father, whether through lineage or suckling.