and the daughters of her descendants include both the daughters of her sons and the daughters of her daughters, because when the term “children” is used without qualification, it includes both males and females. Thus, a wife’s daughter and the daughters of her descendants do not become forbidden to the husband unless he has consummated the marriage with her mother. What is meant here by consummation is sexual intercourse. Therefore, if a man marries a woman, is alone with her in seclusion, but does not find her pleasing and divorces her, he may marry her daughter, whether she is from a previous husband or a subsequent husband, due to Allah Most High’s words:
“Your stepdaughters under your care, born of your wives with whom you have consummated marriage.” [al-Nisa’ 4:23]
With regard to a man’s stepdaughter, Allah Most High has stipulated two conditions:
First: that she be under the husband’s care.
Second: that he has consummated the marriage with her mother.
Of these two conditions, Allah Most High mentioned the understood implication of one, but did not mention the understood implication of the other. He said:
“But if you have not consummated marriage with them, there is no blame upon you.” [al-Nisa’ 4:23]
He did not say, “And if they are not under your care, there is no blame upon you.” Thus, He explicitly stated the understood implication of the second qualification—“with whom you have consummated marriage”—but remained silent concerning the understood implication of the first. This indicates that the first qualification is not legally operative. This is the view of most scholars, although there is a view among both the early and later scholars that it is a condition. However, we say that it is not a condition, because Allah Most High explicitly stated the understood implication of the second qualification, which shows that the understood implication of the first qualification is not legally operative.
If someone were to ask: “If it is not legally operative, then how do you explain the verse?”
The answer is that we understand it as describing what is generally the case and as indicating the underlying reason,