Abu Hurairah narrated:"Allah's Messenger turned (after praying) from a Salat in which he recited aloud and said: 'Has any one of you recite along with me just now?' A man said: 'Yes, O Messenger of Allah.' He said: 'Indeed I said to myself: Why was I being contended with for the Quran?'" He (Az-Zuhri one of the narrators) said: "So when they heard that from Allah's Messenger, the people stopped reciting with Allah's Messenger in the prayers that Allah's Messenger recited aloud

English translation · Jami' at-Tirmidhi