פירוש על קידושין 7:10

I might have thought that her earnings go to her father because in return for her giving him her earnings she is provided for. But her kiddushin money is a different story—she would not be giving it to her father in return for something. Therefore, I might have thought that it is hers. It is not. As we learned, all financial gain that comes from the young daughter goes to her father.