Silsilah as-Sahihah 3444 — Four Sahaba who taught Quran

It is narrated from Sayyiduna Abdullah bin Amr, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: "Learn the Qur'an from four persons: Abdullah bin Mas'ud, Ubayy bin Ka'b, Mu'adh bin Jabal, and the freed slave of Abu Hudhaifah, Salim."