Is the father's verbal will, recorded on tape, regarding the division of his inheritance binding on the heirs, especially since it is unjust to two of his sons? And what is the lawful distribution of inheritance?

The will and the registration that bind the daughters and other heirs are not legally binding, and the heirs have the right to claim their rightful share according to Islamic law. A will made to an heir is invalid and cannot be executed except with the consent of the remaining heirs. This is a consensus among jurists, based on the hadith "There is no will for an heir" and what is stated in the Book of Allah. Therefore, the daughters have the right to claim their full share of the inheritance, and a will that deprives them of their right cannot be executed. Whoever does so commits a great sin, because Allah Himself took charge of dividing inheritances, and whoever obeys Allah and His Messenger will be admitted to Gardens, and whoever disobeys Him will be admitted to the Fire.

If the heirs are limited to the wife and children, the wife receives one-eighth due to the presence of children, and the remaining inheritance is for the children, with the male receiving the share of two females. These shares apply to the entire undivided inheritance until it is distributed.