Prohibiting The Follower From Reciting Aloud Behind An Imam — Sahih Muslim 398 a

The Messenger of Allah (may peace beupon him) led us In Zuhr or 'Asr prayer (noon or the afternoon prayer). (On concluding it) he said: Who recited behind me (the verses): Sabbih Isma Rabbik al-a'la (Glorify the name of thy Lord, the Most High)? There upon a person said: It was I, but I in- tended nothing but goodness. I felt that some one of you was disputing with me in it (or he was taking out from my tongue what I was reciting), said the Prophet (ﷺ).