Musnad Ahmad 32:639

Yahya ibn Ishaq narrated to us, he said: Ibn Lahi'ah informed us, from Bakr ibn Suwadah, from Abu Hamzah al-Khawlani, from Anas ibn Malik, from the Prophet, peace and blessings of Allah be upon him, that he came out to us and said: "Indeed, among you is the best of you"—meaning the Messenger of Allah, peace and blessings of Allah be upon him—"and you recite the Book of Allah. Among you are the red and the white, the Arab and the non-Arab. And a time will come when they will recite the Quran, straightening it as one straightens an arrow. They will hasten their rewards and will not delay them."