It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that after finishing a loud (jahri) prayer, the Holy Prophet (peace and blessings be upon him) asked, "Did any of you recite (Qur'an) with me?" A man said, "Yes, O Messenger of Allah." The Holy Prophet (peace and blessings be upon him) said, "That is why I was wondering why there was a dispute with me in the Qur'an." After that, people stopped reciting behind the Holy Prophet (peace and blessings be upon him) in loud prayers.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 8007