Sayyiduna Abu Hurayrah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "Allah has not given permission for anything as much as He gave His Prophet (peace and blessings be upon him) to recite the Qur'an aloud in a beautiful voice."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4709