What is the ruling on selling a plot of land that we inherited from our deceased father, who suffered from Alzheimer's, knowing that this land was previously divided with the male receiving twice the share of the female, while the mother is still alive, and given that its price has doubled?

An Alzheimer's patient is considered legally incapacitated, and a guardian manages their finances for their benefit. Selling the patient's assets and dividing them during their lifetime without a clear benefit is considered an infringement, as a guardian is not permitted to donate or dispose of the incapacitated person's funds except in a way that benefits them. Invalid transactions made during his lifetime (such as sale, donation, and division) must be annulled, and the properties returned to your father, then divided legally after his death. However, if the sale occurred after his death, the land is divided among the heirs according to Islamic inheritance law.