The surveyor tells the engineering office: I will give you for this plan one and a half dinars per meter, and I will charge the client (the owner of the plan), and perhaps he will take from the owner of the plan two dinars or two and a half dinars per meter. This means that this surveyor gives the engineering office one and a half dinars per meter, and the transaction between him and the owner of the plan is that he takes two dinars or two and a half dinars per meter. Is this situation also permissible or not? Knowing that the owner of the office says that most of his work and the office's transactions are in these two forms, and if he stops dealing with them, perhaps the office's work will stop. Nevertheless, the questioner is also keen and says that if there is any prohibition in them, he will stop dealing with these two forms even if it means closing the office.