Allah's Messenger (ﷺ) neither talked in an insulting manner nor did he ever speak evil intentionally. He used
to say, "The most beloved to me amongst you is the one who has the best character and manners." He
added, " Learn the Qur'an from (any of these) four persons. `Abdullah bin Mas`ud, Salim the freed
slave of Abu Hudhaifa, Ubai bin Ka`b, and Mu`adh bin Jabal."
Sahih al-Bukhari Book 62, Hadith 105