Is it permissible for a wife to give her poor mother—who is in debt due to preparing her daughter [for marriage]—from her husband's zakat money, which he authorized her to disburse?

It is permissible for a wife to give her poor or indebted mother her husband's zakat, provided he has authorized her to disburse it and the mother is eligible to receive zakat. This is the most probable opinion among scholars, especially if the husband is aware of it, as there would then be no impediment other than the mother being among those entitled to zakat.