The Messenger of Allah ﷺ said, "Take the Quran from four people, from Ibn Masud, Ubayy bin Kaab, Muaz bin Jabal, and Salim the freed slave of Abu Huzaifa."He said, this is a hasan sahih hadith.
حدثنا هناد حدثنا أبو معاوية عن الأعمش عن شقيق بن سلمة عن مسروق
قال رسول الله ﷺ خذوا القرآن من أربعة من ابن مسعود وأبي بن كعب ومعاذ بن جبل وسالم مولى أبي حذيفة قال هذا حديث حسن صحيح
Agreed upon [by Bukhari and Muslim]. Muslim reported it in Fadail al-Sahabah, chapter on the virtues of Abdullah bin Masud and his mother, may Allah be pleased with them both, hadith 2464, from the hadith of Amash. Bukhari reported it, hadith 3760, from the hadith of Shaqiq bin Salama, Abu Waail, with the same wording.