Musannaf Ibn Abi Shayba 22:222

Abu Mu'awiyah narrated to us, from al-A'mash, from Ibrahim, from 'Alqamah, from 'Umar, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "Whoever it pleases to recite the Qur'an fresh as it was revealed, then let him recite it according to the recitation of Ibn Umm 'Abd."