Does the wife have the right to demand her gold, which she angrily took off and returned to her husband's mother, after eight years, knowing that the gold was of a large sum and the husband's mother claimed that she had disposed of it?

A woman does not have the right to reclaim gold she gifted to her husband's mother, as the husband's mother has taken possession of it. Revoking a gift is not permissible except for a father concerning what he gives to his child. Furthermore, revoking a gift is only valid if the gifted item remains in the possession of the donee.