Musnad Abu Ya'la al-Mawsili 110:123

Abu al-Rabi' narrated to us, Salam ibn Salim al-Tawil narrated to us, from al-Fadl ibn 'Atiyyah, from 'Ata' ibn Abi Rabah, from Ibn 'Abbas, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Sharpness of temper afflicts the best of my nation."