Imam al-Sadiq (AS) was asked how to determine the most rightful person to lead the congregation, to which he replied, ‘Verily the Prophet (SAWA) said, ‘The person who recites the Quran the best [i.e. with correct pronunciation] should lead them, and if they all recite similarly, then the one who migrated [from Makkah to Medina] the earliest, and if they all migrated around the same time, then the oldest from among them, and if they are all the same age, then the most knowledgeable from among them with regards to the prophetic practice and the laws of jurisprudence. No one from among you should lead a man in prayer in his own home, nor a man of authority within the sphere of his authority.