Volume 8 · Book 73 · Hadith 72
Narrated Anas: Allah's Apostle was neither a Fahish (one who had a bad tongue) nor a Sabbaba (one who abuses others) and he used to say while admonishing somebody, "What is wrong with him? May dust be on his forehead!"
— Sahih Bukhari, Volume 8, Book 73: Good Manners and Form (Al-Adab), Hadith #72