Starting a business through begging
Q: One of my uncle earned his money by begging and now he started the hotel business. Obviously the total money he invested in the Hotel was came from his last job "Begging". But he did all the hard work to make him successful man in the hotel business. I know he was doing charity to purify the money. Is this acceptable and will purify the money? By starting the business through begging did he do any sin?