Praise be to Allaah.  

Firstly:

 Memorizing the Qur’aan is an act of worship through which one seeks the Face of Allaah and reward in the Hereafter. Without this intention, he will never have any reward, rather he will be punished for doing this act of worship for someone or something other than Allaah. 

The haafiz (the person who has memorized the Qur’aan) should not have any intention of gaining worldly benefits by memorizing the Qur’aan, because his memorization thereof is not a product to be traded with in this world, rather it is an act of worship which is done for the sake of his Lord.

 Allaah has given special privileges to the one who memorizes the Qur’aan in a number of ways in this world and in the Hereafter, for example:

 1 – He takes precedence over others in leading the prayer.

 It was narrated that Abu Mas’ood al-Ansaari said: “The Messenger of Allaah (peace and blessings of Allaah be upon him) said: ‘The people should be led in prayer by the one among them who has the most knowledge of the Book of Allaah; if they are equal in knowledge of the Qur’aan, then by the one who has most knowledge of the Sunnah; if they are equal in knowledge of the Sunnah, then by the one who migrated (made hijrah) first; if they are equal in terms of hijrah, then by the one who became Muslim first. No man should lead another in prayer in his domain of authority, or sit in his place in his house, except with his permission.”

(Narrated by Muslim, 673) 

It was narrated that ‘Abd-Allaah ibn ‘Umar said: “When the first muhaajiroon (emigrants) came to Quba’, before the Messenger of Allaah (peace and blessings of Allaah be upon him) came (to Madeenah), Saalim the freed slave of Abu Hudhayfah used to lead them in prayer, and he was the one who knew the most Qur’aan.”

(Narrated by al-Bukhaari, 660)

2 – He is placed in front of others in a common grave, closer to the qiblah, if it is essential to bury him with others.

 It was narrated that Jaabir ibn ‘Abd-Allaah (may Allaah be pleased with them both) said: “The Prophet would wrap two of the men slain at Uhud in a single cloth, then he would ask, ‘Which of them knew more Qur’aan?’ If one of them was pointed out to him, he would put that one in the lahd (niche in the side of the grave) first. And he said, ‘I will be a witness over these people on the Day of Resurrection.’ He commanded that they should be buried with their blood, without being washed, and that no funeral prayer should be offered for them.”

(Narrated by al-Bukhaari, 1278)

 3 – He takes precedence in leadership if he able to bear that

 It was narrated from ‘Aamir ibn Waathilah that Naafi’ ibn ‘Abd al-Haarith met ‘Umar in ‘Usfaan, and ‘Umar had appointed him as governor of Makkah. ‘Umar said, “Who have you appointed in charge of the people of the valley?” He said, “Ibn Abza.” ‘Umar asked, “Who is Ibn Abza?” He said, “One of our freed slaves.” Umar said, “Have you appointed over them a freed slave?!” He said, “He is well-versed in the Book of Allaah and he has knowledge of the laws of inheritance.” ‘Umar said: “Your Prophet (peace and blessings of Allaah be upon him) said: ‘Indeed, by this Book, Allaah would exalt some people and degrade others.’”

(Narrated by Muslim, 817)

 With regard to the Hereafter:

 4 – The status of the one who memorizes Qur’aan will be commensurate with the last aayah he memorized. 

It was narrated from ‘Abd-Allaah ibn ‘Amr that the Prophet (peace and blessings of Allaah be upon him) said: “It will be said to the companion of the Qur’aan (i.e., the one who memorized and studied it): ‘Read, advance in status and recite as you used to do in the world, for your status will be commensurate with the last aayah that you recite.’”

(Narrated by al-Tirmidhi, 2914; he said this is a saheeh hasan hadeeth. Al-Albaani said in Saheeh al-Tirmidhi, no. 2329, it is hasan saheeh. Also narrated by Abu Dawood, 1464).

 What is meant by reciting here is memorizing.

 5 – He will be with the angels, accompanying them. 

It was narrated from ‘Aa’ishah that the Prophet (peace and blessings of Allaah be upon him) said: “The one who recites the Qur’aan and learns it by heart, will be with the noble righteous scribes (in Heaven) and the one who exerts himself to learn the Qur’aan by heart and recites it with great difficulty, will have a double reward.”

 (Narrated by al-Bukhaari, 4653; Muslim, 798) 

6 – He will be given a crown of honour and a garment of honour to wear. 

It was narrated from Abu Hurayrah that the Prophet (peace and blessings of Allaah be upon him) said: “The Qur’aan will come on the Day of Resurrection and will say, ‘O Lord, adorn him.’ So he will be given a crown of honour to wear. Then it will say, ‘O Lord, give him more.’ So he will be given a garment of honour.’ Then it will say, ‘O Lord, be pleased with him.’ So Allaah will be pleased with him. Then it will be said to him, ‘Recite and advance in status, and for each verse you will gain one more hasanah (reward for good deed).”

(Narrated by al-Tirmidhi, 2915. He said, this is a saheeh hasan hadeeth. Al-Albaani said in Saheeh al-Tirmidhi, 2328, this is hasan).

 7 – The Qur’aan will intercede for him with his Lord. 

It was narrated that Abu Umaamah al-Baahili said: “I heard the Messenger of Allaah (peace and blessings of Allaah be upon him) say, ‘Recite the Qur’aan, for it will come on the Day of Resurrection to intercede for its companions. Recite the two bright ones, al-Baqarah and Soorat Aal ‘Imraan, for they will come on the Day of Resurrection like two clouds or two shades or two flocks of birds in ranks, pleading for those who recite them. Recite Soorat al-Baqarah for to take recourse to it is a blessing and to give it up is a cause of grief, and the magicians cannot confront it.”

 (Narrated by Muslim, 804, and by al-Bukhaari in a mu’allaq report). 

Secondly:

With regard to his relatives and descendents, there is evidence concerning his parents that they will be clothed with garments which far surpass everything to be found in this world, and that will only be because they took care of and taught their child. Even if they themselves were ignorant, Allaah will honour them because of their child. But the one who prevented his child from learning the Qur’aan, he will be one of those who are deprived. 

It was narrated that Abu Hurayrah said: “The Messenger of Allaah (peace and blessings of Allaah be upon him) said: ‘The Qur’aan will come on the Day of Resurrection like a pale man saying to its companion, “Do you recognize me? I am the one who made you stay up at night and made you thirsty during the day…” Then he will be given dominion in his right hand and eternity in his left, and a crown of dignity will be placed upon his head, and his parents will be clothed with garments which far surpass everything to be found in this world. They will say, “O Lord, how did we earn this.” It will be said to them, “Because you taught your child the Qur’aan.”’”

(Narrated by al-Tabaraani in al-Awsat, 6/51). 

It was narrated that Buraydah said: “The Messenger of Allaah (peace and blessings of Allaah be upon him) said: ‘Whoever reads the Qur’aan, learns it and acts in accordance with it, on the Day of Resurrection his parents will be given a crown to wear whose light will be like the light of the sun, and his parents will be given garments which far surpass everything to be found in this world. They will say, “Why have we been given this to wear?” It will be said, “Because your child learned the Qur’aan.”’”

(Narrated by al-Haakim, 1/756)

 These two hadeeth support one another. See al-Silsilah al-Saheehah, 2829. 

And Allaah knows best.