We used to go to Abdullah b. 'Amr and talk to him, Ibn Numair said: One day we made a mention of Abdullah b. Mas'ud, whereupon he said: You have made mention of a person whom I love more than anything else. I heard Messenger of Allah ﷺ as saying: Learn Qur'an from four persons: Ibn Umm 'Abd (i. e. 'Abdullah b. Mas'ud) he started from him-then Mu'adh b. Jabal and Ubayya b. Ka'b, then Salim the ally of Abu Hudhaifa. (Using translation from Muslim 2464a)
عَبْدُ اللهِ بْنُ عَمْرٍو إِنَّ ذَلِكَ رَجُلٌ لَا أَزَالُ أُحِبُّهُ بَعْدَ شَيْءٍ سَمِعْتُهُ مِنْ رَسُولِ اللهِ ﷺ يَقُولُ «اقْرَءُوا الْقُرْآنَ مِنْ أَرْبَعَةِ نَفَرٍ مِنَ ابْنِ أُمِّ عَبْدٍ» فَبَدَأَ بِهِ «وَمِنْ أُبَيِّ بْنِ كَعْبٍ وَمِنْ سَالِمٍ مَوْلَى أَبِي حُذَيْفَةَ وَمِنْ مُعَاذِ بْنِ جَبَلٍ»