What are the aspects of getting rid of ill-gotten money acquired from a competition considered gambling, and is it permissible to give from it to one's wife or mother despite their not being in need, or to one's divorced mother-in-law who is in need, and what are the correct ways to get rid of it?

The prize obtained from gambling is unlawful (haram), and one must dispose of it by spending it on Muslim welfare and giving it to the poor and needy. It is not permissible to take from it for oneself or to give it to one's mother or wife's father or anyone else, unless they are poor and in need, because unlawful money, if given to the poor, becomes lawful for them. Imam An-Nawawi mentioned that one can give it as charity to oneself and one's dependents if they are poor. Your mother is not in need, so do not give her from it. As for your wife, you are responsible for her maintenance, and she should not be given from unlawful money unless you yourself are in need of it due to your poverty. The rule is to give the money to those who are characterized by poverty and need.