There is no set limit to which a trader must adhere in the profits he makes on his business, but if the goods have a known market value, it is not permissible for him to cheat the buyer by selling goods to him for more than the usual market value and taking advantage of his ignorance.

The conditions of a permissible Murabahah include: 1- The customer tells the company about the products they want to acquire. 2- The company buys these products for itself. 3- The company takes possession of the products and moves them from the dealer’s place. 4- The company sells the products to the customer after taking possession of them. 5- Once the company has sold the products to you, it is permissible for you to use them to build the house or to sell them.