Benefits and Virtues of Memorising the Qurʾān

1. They are the best of people.
2. The Qurʾān will intercede for them.
3. The Qurʾān is a proof for them.
4. They are from the chosen people of Allāh.
5. They are on the rank of the angels.
6. They will be among those with the most good deeds on the Day of Judgement.
7. They will be in the highest ranks of Jannah.
8. The angels accompany them at all times.
9. Their parents will be honoured because of them.
10. Allāh will mention them in the highest heaven.
11. They are safe from the trials of the Dajjāl.
12. They are safe from the trials of the grave.

Taken from Ilā Ṭālib al-ʿIlm, Abū al-Ḥasan al-Sayyid ʿAbd al-Majīd al-Ghawrī

For further reading see Faḍāʾil al-Qurʾān al-Karīm, Ibn Kathīr