Aboo Umaamah relates that the Prophet (sallallaahu 'alaihi wa sallam) said: "Read the Qur'an, for verily it will come on the Day of Standing as an intercessor for its companions." [Muslim]
'Uthmaan, may Allah be pleased with him, said that the Prophet (sallallaahu 'alaihi wa sallam) said: "The best of you are the ones who learn the Qur'an and teach it to others" [Al-Bukhari]
'Aa'ishah, may Allah be pleased with her, relates that the Prophet (sallallaahu 'alaihi wa sallam) said: "Verily the one who recites the Qur'an beautifully, smoothly, and precisely, he will be in the company of the noble and obedient angels. And as for the one who recites with difficulty, stammering or stumbling through its verses, then he will have TWICE that reward." [Al-Bukhari and Muslim]