(44) باب مَا يُنْهَى مِنَ السِّبَابِ وَاللَّعْنِ
Narrated Anas:
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!"
Reference: Sahih al-Bukhari 6046
In-book reference: Book 78, Hadith 76
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 73, Hadith 72