ANSWER:

He may take what he needs to sustain a decent living and to begin a business with and dispose off the rest to poor and needy muslims. If the business flourishes, he should dispose off the capital in means of charity. 

One person is a banker. We know banking profession is a haram cz its directly related to riba So if he try to start a new business how can he start. All of his money come from haram income. He can not use this money for new halal job . What is the best solution