Choosing A Mu'adhdhin Who Does Not Accept Any Payment For His Adhan

It was narrated that 'Uthman bin Abi Al-As said:

"I said: 'O Messenger of Allah, made me the Imam of my people.' He said: 'You are their Imam, so consider the weakest among them and choose a Mu'adhdhin who does not accept any payment for his Adhan.'"

أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنَا عَفَّانُ، قَالَ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ، قَالَ حَدَّثَنَا سَعِيدٌ الْجُرَيْرِيُّ، عَنْ أَبِي الْعَلاَءِ، عَنْ مُطَرِّفٍ، عَنْ عُثْمَانَ بْنِ أَبِي الْعَاصِ، قَالَ قُلْتُ يَا رَسُولَ اللَّهِ اجْعَلْنِي إِمَامَ قَوْمِي . فَقَالَ " أَنْتَ إِمَامُهُمْ وَاقْتَدِ بِأَضْعَفِهِمْ وَاتَّخِذْ مُؤَذِّنًا لاَ يَأْخُذُ عَلَى أَذَانِهِ أَجْرًا " .