Is it permissible for the investor (the cousin) to sell the goods to the Mudarib (the questioner) immediately after purchasing them, on condition that the Mudarib pays their price at a later date with a fixed profit, instead of waiting for them to be sold in the market and sharing the profits?

Jurists differed regarding the trader (mudarib) buying goods for himself from the commenda (mudarabah) capital belonging to the financier (rabb al-mal). The Hanafis and Malikis permitted this, while the Shafi'is prohibited it. The Hanbalis restricted the prohibition to cases where profit had materialized. The preponderant opinion is that of the Maliki school, which differentiates between selling for cash (permissible) and selling on credit (prohibited), due to the suspicion of usury involved in the latter.