There are many Hadeeths stating that Whoever memorizes Qur’an and acts upon it, Allah (SWT) will reward him and honor him greatly for that, so that he will rise in status in Paradise to a level commensurate with what he memorized of the Book of Allah.
The Hadeeth says : “It will be said in the Paradise to the person who recited Qur’an in his life: Recite and rise up in Paradise degrees according to what you recited.
Memorizing and acting upon Quran will cause the person getting the Shafa'ah of Quran.
Wassalam.