Is the profit resulting from the sale of forbidden shares for a deceased person at a price higher than the purchase price considered usury, and must the share be sold at the original capital price at which the deceased bought it?

The money exceeding the principal in the shares of a usurious bank is unlawful (haram). As for mixed shares, it is permissible to follow those scholars who permitted them, with the obligation to dispose of the unlawful (haram) portion of their profits. And whoever follows the fatwa that permits disposing of unlawful shares by selling them, there is no blame upon him, but he must donate what exceeds the principal to the poor, based on the Almighty's saying: "And if you repent, you may have your principal sums. Do not wrong and you will not be wronged."