Sahih Muslim 2462
'Abdullah (b. Mas'ud) reported that he (said to his companions to conceal their copies of the Qur'an) and further said:
He who conceals anything he shall have to bring that which he had concealed on the Day of judgment, and then said: After whose mode of recitation you command me to recite? I in fact recited before AIlah's Messenger (ﷺ) more than seventy chapters of the Qur'an and the Companions of Allah's Messenger (ﷺ) know it that I have better understanding of the Book of Allah (than they do), and if I were to know that someone had better understanding than I, I would have gone to him. Shaqiq said: I sat in the company of the Companions of Mubkmmad (ﷺ) but I did not hear anyone having rejected that (that is, his recitation) or finding fault with it.
حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ الْحَنْظَلِيُّ، أَخْبَرَنَا عَبْدَةُ بْنُ سُلَيْمَانَ، حَدَّثَنَا الأَعْمَشُ،
 عَنْ شَقِيقٍ، عَنْ عَبْدِ اللَّهِ، أَنَّهُ قَالَ ‏{‏ وَمَنْ يَغْلُلْ يَأْتِ بِمَا غَلَّ يَوْمَ الْقِيَامَةِ‏}‏ ثُمَّ قَالَ عَلَى قِرَاءَةِ
 مَنْ تَأْمُرُونِي أَنْ أَقْرَأَ فَلَقَدْ قَرَأْتُ عَلَى رَسُولِ اللَّهِ صلى الله عليه وسلم بِضْعًا وَسَبْعِينَ
 سُورَةً وَلَقَدْ عَلِمَ أَصْحَابُ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنِّي أَعْلَمُهُمْ بِكِتَابِ اللَّهِ وَلَوْ أَعْلَمُ
 أَنَّ أَحَدًا أَعْلَمُ مِنِّي لَرَحَلْتُ إِلَيْهِ ‏.‏ قَالَ شَقِيقٌ فَجَلَسْتُ فِي حَلَقِ أَصْحَابِ مُحَمَّدٍ صلى الله
 عليه وسلم فَمَا سَمِعْتُ أَحَدًا يَرُدُّ ذَلِكَ عَلَيْهِ وَلاَ يَعِيبُهُ ‏.‏