Is it obligatory for a father to be just between his children in gifts and presents, such as phones and jewelry, or is he not required to do so?

The preponderant opinion is that justice among children in gifts and endowments is obligatory, unless a child has a special need that necessitates favoring them to the extent of their need. As for expenditures, equality among children is not obligatory; the father spends on them according to each one's need. Thus, adjustment is achieved by giving each one what they need. Therefore, it is not obligatory for a father, if he buys a phone for one of his sons or jewelry for his daughter, to give the same to his other children, as long as that falls within the limits of reasonable expenditure. However, if he gives something beyond reasonable expenditure, then it is obligatory for him to equalize among the children, and equalization is achieved either by taking back what he gave to the child or by bestowing the like upon the other children.