Musnad Ahmad 907:4

Hammad ibn Khalid narrated to us, Ibn Abi Dhi’b narrated to us, from al-Muhajir ibn Mismar, from ‘Amir ibn Sa’d, who said: I asked Jabir ibn Samurah about a hadith of the Messenger of Allah, peace and blessings of Allah be upon him. He said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "The religion will continue to be established until there are twelve caliphs from Quraysh. Then liars will emerge before the Hour. Then a group of Muslims will emerge and they will extract the white treasure—the treasure of Chosroes and the family of Chosroes. And if Allah gives any of you good, let him begin with himself and his family. And I am your forerunner at the Basin."