Salim narrates from his father, Sayyiduna Ibn Umar (may Allah be pleased with them both), that he used to say: The believer is not one who taunts much, nor one who curses much. (The narrator said:) "And I never heard Ibn Umar (may Allah be pleased with them both) curse anyone except for one man."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13007