Musnad Abu Ya'la al-Mawsili 42:14

Abu Ya'la Ahmad ibn Ali ibn al-Muthanna al-Mawsili narrated to us, Zuhayr narrated to us, Yahya ibn Sa'id narrated to us, from 'Awf, Abu al-Siddiq narrated to us, from Abu Sa'id al-Khudri, from the Prophet (peace be upon him), who said: "The Hour will not be established until the earth is filled with oppression and hostility. Then a man from my household—or he said: from my progeny—will emerge, and he will fill it with equity and justice just as it was filled with oppression and hostility."