Musnad Ahmad 907:67

Muhammad ibn Ja'far narrated to us, Shu'bah narrated to us, from 'Abd al-Malik ibn 'Umayr, who said: I heard Jabir ibn Samurah saying: I heard the Messenger of Allah (ﷺ) saying: "There will be twelve commanders." He said: Then he said a word I did not hear. He said: My father said: Indeed, he said: "All of them will be from Quraysh."