Musnad Abu Ya'la al-Mawsili 147:39

Abu Bakr ibn Abi Shaybah narrated to us, Yunus ibn Muhammad narrated to us, from Fulayh ibn Sulayman, from Hilal ibn Ali, from Anas ibn Malik, who said: The Messenger of Allah (may Allah bless him and grant him peace) was neither a curser nor one who used foul language. He would say to one of us during a reprimand: "What is the matter with him? May his right hand be covered in dust."