Is it permissible to work in a bookstore that sells lotteries and gambling? If you were aware of the prohibition of such activities and worked in such a shop, what should you do with the money you earned?
Working is unlawful business like gambling is Haraam, and the money earned from unlawful work is also unlawful. It should be given back to the original owners or given to the Marje’ of Taqleed who will spend it in helping the poor believers.
Wassalam.