Is it permissible to trade in Forex with the replacement of the earned money with lawful money, and how can one know when it is permissible to work in Forex? Is it permissible to assist a Forex trader by sending him reports for lawful money? Are Islamic accounts permissible, and if not, what are the conditions for their use?

Allah Almighty has guaranteed provision for His servants, and no soul will die until it has received its full provision. Therefore, one should fear Allah and seek lawful provision, and not hasten provision through disobedience to Allah. It is not permissible to deal with the Forex system unless the Sharia controls are observed. Exchanging earnings from forbidden Forex with lawful money does not make the forbidden transaction permissible, and the prohibition relates to the liability of the earner, not to the money itself. It is not permissible to cooperate with those who deal with forbidden Forex; as Allah Almighty says: "And do not cooperate in sin and aggression." If there is a Forex system that observes the Sharia controls, then it is permissible to deal with it and assist those who deal with it. Otherwise, it is not, for lawful earnings are abundant.