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 Allah
5. They are on the rank of the angels
6. They are from amongst those who will have the most good deeds on the Day of Judgement
7. They will be in the highest ranks of Jannah
8. The angels always accompany them
9. Their parents will be honoured because of them
10. Allah 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