The 20,000 yuan that Mother A gave to Party B belongs to marriage income in nature. Although B voluntarily registered marriage with A, asking for property of 20,000 yuan conforms to the characteristics of asking for property by marriage.
(2) Party A has the right to ask Party B to return the property paid by Party A's mother. The bride price paid by mother A to mother B and the property claimed by mother B through marriage are formally paid by mother A to mother B, but in essence, mother A pays mother B on behalf of mother A to satisfy mother A's desire to marry mother B. Therefore, as a party to the marriage, Party A has the right to ask mother B to return the bride price and the property claimed through marriage.
(3) Party B has the obligation to return the bride price. According to Article 10 of the Interpretation of Marriage Law, if both parties have gone through the marriage registration formalities but have not lived together, and the parties request to return the bride price paid according to the custom at the time of divorce, the people's court shall support it according to law. Therefore, Party B is obliged to return the bride price collected to Party A. ..
Party B shall, as appropriate, return 20,000 yuan of property acquired through marriage. According to article 19 of the Supreme People's Court's "Several Specific Opinions on People's Courts Handling Divorce Cases", if the property acquired by marriage is not married for a long time, or the other party's life is difficult due to asking for property, it can be returned as appropriate.