Is it permissible for a daughter and her husband to execute a will for building a mosque with money the daughter took from her deceased mother's safe without informing the rest of her siblings, for fear of their objection?

The will must be executed if it is within the limits of one-third of the estate. The testimony of the daughter and her husband alone is not sufficient to prove the will, and it does not obligate the other children to execute it. However, their confirmation of their sister’s claim is better. The sister should take out an amount equal to the bequeathed money from her share and spend it on building a mosque. The daughter and her husband do not have the right to execute the will without the knowledge of the rest of the heirs. If an heir cannot execute a proven will without the other heirs, then it is even more impermissible to do so for an unproven one. If one of the children acknowledges his father's will after the division of the inheritance, he pays one-third of his share. However, if he acknowledges a debt owed to someone else, the debt takes precedence over the inheritance.