Musannaf Ibn Abi Shayba 22:91

Al-Zubayri Muhammad ibn Abd Allah narrated to us, from Sufyan, from al-A'mash, from Khaythama, from al-Hasan, from Imran ibn Husayn, who said: I heard the Messenger of Allah (peace and blessings of Allah be upon him) saying: "Whoever reads the Quran, let him ask Allah by it, for there will soon come a people who read the Quran and ask the people by it."