Is the mother entitled to demand an appraisal of the father's house at today's price and to distribute its value among the heirs, given that the father had sold it to his son in writing for a specific price before his death without the knowledge of the other heirs, taking into account that the son built the larger part of the house and bore the expenses of the family and the father's treatment for years before and after his death?

If your purchase of your father's house is proven by evidence without favoritism, then you are only obligated to pay the agreed-upon price (15,000 pounds), and the heirs do not have the right to demand that you pay its current multiplied value; because debts are paid with their equivalents, not with their value, according to the resolution of the Islamic Fiqh Academy.

As for what you spent on your parents, your siblings, and your sister's marriage: - If the father was wealthy or you spent with the intention of donating, then you have no right to claim it back. - If you spent with the intention of claiming it back, then you have the right to do so if you swear an oath or if you have evidence to support you. - What you spent on your poor father, or your mother and poor siblings after his death, you have no right to claim back; because it was an obligation upon you.

We draw attention to the fact that inheritance matters are serious and complex, and it is not sufficient to rely solely on a fatwa. Rather, they must be referred to the Sharia courts for consideration and investigation, as there may be wills, debts, or other rights that take precedence over the rights of the heirs.