What is the ruling on the officiant (ma’dhūn) taking a fee as a percentage of the deferred dowry (mu’akhkhar al-ṣadāq)? Does this fall under the category of necessity, or is it an unlawful taking of money without right? Is there any monopolization involved? And is the law considered a legitimate legal basis in this matter?

If the authorized marriage official does not receive a salary from the state, he is permitted to take a fee for his work. However, this fee must not be a percentage of the deferred dowry (mu’akhar al-sadaq), because his work has no relation to the increase or decrease of the deferred dowry. This could lead to consuming wealth unjustly and infringing upon the rights of the woman.