Is it permissible to take a percentage of the profits from a free trade in exchange for collecting funds and delivering them to the merchant, communicating with him and with the depositors, and what is the permissible percentage, and how is loss dealt with, and is it permissible to invest the depositors' share of the profits without informing them?

What you take from your relatives and give to a man for investment has three forms:

1. Loan (Qard): The borrowed money is returned as is. The profits are shared between you and the mudarib (investor/agent) according to the agreement, and the loss is borne by you; the agent or the lenders do not bear it. 2. Invalid Mudarabah (Partnership): If you take the money as mudarabah without specifying a profit share, then all the profit belongs to the owners of the money, and you are entitled to a customary wage (ujrat al-mithl). If it is corrected by specifying a profit share, then it can be paid to another with the permission of the money owners. If you pay it without their permission, you are liable for it. 3. Agency (Wakalah): You do not have a share of the profit. Rather, the profit is divided between the money owners and the mudarib according to the agreement, and the loss is borne by the money owners. As agents, you can add their profits to the capital for reinvestment if that is better for them.