question #3 Sahih al-Bukhari 6046, Book 78, Hadith 76 : How does the use of metaphorical language, such as ‘May dust be on his forehead,’ reflect the Prophet’s approach to admonishment?

Allah’s Messenger (ﷺ) 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!”