Masruq (may Allah have mercy on him) says: I was sitting with Sayyiduna Abdullah bin Amr bin Aas (may Allah be pleased with them), and the mention of Sayyiduna Abdullah bin Mas’ud (may Allah be pleased with him) came up. He said: I have loved this man ever since I heard this hadith from the Messenger of Allah (peace and blessings be upon him). He (peace and blessings be upon him) said: Learn the Qur’an from these four persons: Ibn Umm Abd, Mu’adh, the freed slave of Abu Hudhaifah, Salim. He (peace and blessings be upon him) mentioned Ibn Umm Abd, that is, Sayyiduna Abdullah bin Mas’ud (may Allah be pleased with him), first. Ya’la, the narrator, says: I forgot the name of the fourth.