Musnad Ahmad 574:4

Yahya ibn Sa'id narrated to us, Shu'bah narrated to us, he said: Mansur narrated to me, from Tamim ibn Salamah, or Sa'd ibn 'Ubaydah, from 'Ubayd ibn Khalid al-Sulami—and he was one of the companions of the Prophet, may Allah bless him and grant him peace—who said: "Sudden death is a seizing of anger." And he narrated it once from the Prophet, may Allah bless him and grant him peace.