Sayyiduna Amr bin Salamah (may Allah be pleased with him) narrates: I went with my father to the Prophet (peace and blessings be upon him) and informed him of my people's acceptance of Islam. Among the instructions the Prophet (peace and blessings be upon him) gave us was this: "Let the one among you who knows the most Qur'an lead you in prayer." The narrator says: I knew the most Qur'an among them, so they put me forward. (Allamah al-Haythami says:) I say: This narration is recorded in the Sahih, narrated by the narrator from his father, and here it is narrated from the narrator himself; and Allah knows best.
Al-Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2320