The scholars differed regarding the permissibility of a woman’s wiping over her head covering.

Some of them said that it does not suffice (1), because Allah, Most High, commanded wiping the head in His saying: “Wipe your heads” [al-Ma'idah 5:6]. If she wipes over the head covering, she has not wiped over her head; rather, she has wiped over a barrier—the head covering—and so this is not permissible.

Others held it to be permissible, drawing an analogy between a woman’s head covering and a man’s turban. A woman’s head covering is comparable to a man’s turban, and hardship exists in both cases.

In any event, if there is hardship—whether because of cold weather or because of the difficulty of removing it and wrapping it again—then there is no harm in allowing such leniency. Otherwise, it is preferable that she not wipe over it, for no authentic texts have been transmitted on this matter (2) . . .

If the head is coated with henna, gum, honey, or the like, it is permissible to wipe over it, because it is established that the Prophet ﷺ, while in a state of consecration for pilgrimage, had his head coated (3). Whatever is applied to the head as a coating is therefore regarded as part of it.