Riders used to come to us from the direction of the Messenger of Allah ﷺ, so we would ask them what they had learned. They would tell us that the Messenger of Allah ﷺ said, "Let the one among you who knows the most of the Quran lead you in prayer."
حدثنا علي بن عاصم قال خالد الحذاء أخبرني عن أبي قلابة
كانت تأتينا الركبان من قبل رسول الله ﷺ فنستقرئهم فيحدثون أن رسول الله ﷺ قال ليؤمكم أكثركم قرآنا