Is it permissible to invest in an electric charger company that offers a fixed daily profit of 20%, with the condition that the profit must be withdrawn daily, or else it carries over to the next day if not withdrawn?

The aforementioned transaction is a Mudarabah (profit-sharing partnership), based on the principle that both the capital provider and the Mudarib (investor/manager) have an undivided share of the profit—if it occurs—according to their agreement, and the capital of the Mudarabah is not guaranteed except in cases of negligence or transgression. However, depriving the capital provider of his profit if he does not withdraw it daily is impermissible, as it constitutes consuming people's wealth unjustly, in accordance with the Almighty's saying: "And do not consume your properties among yourselves unjustly."