It was narrated that ‘Uthman bin Abi Ai-’As said: “I said: ‘Messenger of Allah صلی اللہ علیہ وآلہ وسلم, make me the Imam of my people.’ He said: ‘You are their Imam, so consider the weakest among them and choose a Muadhdhin who does not accept any payment for his Adhan.” (Sahih)