Musannaf Ibn Abi Shaybah 31991 — Forgetting the Quran

Abd al-Karim Abu Umayyah said that Talq bin Habib said: Whoever learns the Qur'an and then forgets it without any excuse, a rank is reduced from him for every single verse, and on the Day of Resurrection this person will come in such a state that the Qur'an will dispute with him.