The one who is most versed in Allah's Book should act as Imam for the people, but If they are equally versed in reciting it, then the one who has most knowledge regarding Sunnah if they are equal regarding the Sunnah, then the earliest one to emigrate; it they emigrated at the same time, then the earliest one to embrace Islam. No man must lead another in prayer where (the latter) has authority, or sit in his place of honour in his house, without his permission. Ashajj in his narration used the word," age" in place of" Islam". (Using translation from Muslim 673a)   

قَالَ رَسُولُ اللهِ ﷺ يَؤُمُّ الْقَوْمَ أَقْرَؤُهُمْ لِكِتَابِ اللهِ فَإِنْ كَانُوا فِي الْقِرَاءَةِ سَوَاءً فَأَعْلَمُهُمْ بِالسُّنَّةِ فَإِنْ كَانُوا فِي السُّنَّةِ سَوَاءً فَأَقْدَمُهُمْ هِجْرَةً فَإِنْ كَانُوا فِي الْهِجْرَةِ سَوَاءً فَأَقْدَمُهُمْ سِنًّا وَلَا يَؤُمَّنَّ الرَّجُلُ الرَّجُلَ فِي سُلْطَانِهِ وَلَا يَقْعُدُ فِي بَيْتِهِ عَلَى تَكْرِمَتِهِ إِلَّا بِإِذْنِهِ لَفْظُ حَدِيثِهِ عَنْ أَبِي عَمْرٍو