Abu Mas’ud (RA) narrated that: Allah’s Messenger (peace be upon him) said: “The one who recites most of the Book of Allah is to lead the people (in prayers). If they are equal in recitation, then the most knowledgeable in the Sunnah among them. If they are equal regarding the Sunnah, then the earliest of them to emigrate. If they are equal in their emigration, then the eldest among them. And a man is not to be led in prayer in the place of his authority, and his spot of esteem in his home is not to be sat on without his permission.”
(Jami` at-Tirmidhi, Vol. 1, Book 2, Hadith 87)
