Is a deceased person's bequest of one-third of his estate to his son's wife in exchange for her service to him valid, given that one of his heirs (his sons) rejects this bequest while the rest of the heirs approve it?

The wife does not inherit from her deceased father-in-law. His will for her to receive one-third of his wealth must be executed, even if the heirs do not consent. The son's refusal is not considered if he acknowledged the will. However, if he did not acknowledge it, then it must be proven. Such cases are brought before the Sharia court, as it is specialized in disputes. If the deceased left only two sons and one daughter, the inheritance is divided into fifteen shares: five for the will, four shares for each son, and two shares for the daughter. Inheritance matters are serious and complex, and merely issuing a fatwa is not sufficient; rather, they should be referred to Sharia courts for investigation, as an heir, debts, or wills that take precedence over the rights of the heirs may emerge.