Musnad Ahmad 28:507

Abu Nu'aym narrated to us, Sufyan narrated to us, from Abu Hazim, from 'Amr ibn Shu'ayb, from his father, from 'Abdullah ibn 'Amr, from the Prophet, peace and blessings of Allah be upon him, who said: "A servant does not believe until he believes in the decree (al-qadar), its good and its evil."