The Book Pertaining to the Merits of the Companions (Allah Be Pleased With Them) of the Holy Prophet (May Peace Be Upon Him) (Kitab Al-Fada'il Al-Sahabah)
Muslim :: Book 31 : Hadith 6027
Masruq reported: They made a mention of Ibn Mas'ud before 'Abdullah b. Amr, whereupon he said: He is a person whose love is always fresh in my heart after I heard Allah's Messenger (may peace be upon him) as saying: Learn the recita- tion of the Qur'an from four persons: from Ibn Mas'ud, Salim, the ally of Abu Hudhaifa, Ubayy b. Ka'b, Mu'adh b. Jabal.