Ibn Mas’ud was a personal secretary of Mohammed. Mohammed told other people to learn the Qur’an from Ibn Mas’ud and three others. (Bukhari vol.6 book 60 no.521 p.486-487)
Ibn Mas’ud alikuwa katibu muhtasi wa Muhammad. Muhammad aliwaambia watu wengine wajifunze kutoka kwa Ibn Mas’ud na wengine watatu. (Bukhari juzuu ys 6 kitabu cha 60 sehemu ya 8 na.521 uk.486-487).