What are the rulings regarding the division of the estate of a deceased wife who inherited a deferred dowry and jewelry sold to her husband, and how can the husband dispose of his minor daughter's share of this inheritance, and how can he absolve himself of the heirs' rights, and is Zakat obligatory on the daughter's saved money?

The estate of the deceased wife, in the presence of a daughter and parents, is divided as follows: the husband receives one-fourth, the daughter one-half, and each of the parents one-sixth. The inheritance is from twelve shares and goes up to thirteen. If the parents waive their shares in favor of the daughter, their shares are added to hers. The expenses for the daughter are to be covered from her own wealth, unless she is poor or the father voluntarily provides for them. The father's responsibility is discharged by giving each heir their rightful share. Zakat is obligatory on the wealth of the father and the daughter if it reaches the nisab (minimum threshold) and a hawl (one lunar year) has passed on it.