(1) al-Baladhuri, Ansab, 365;
(2) al-Tabari, Ta'rikh, VI, 43;
(3) Ibn Qutaybah, al-'Imamah, I, 119, 141;
(4) Nasr, Siffin, see Ibn Abi al-Hadid, I, 110;
(5) Sibt, Tadhkirah, 103;
(6) Abu al-Faraj, al-'Aghani, IX, 5;
(8) Ibn al-'Athir, al-Kamil, II, 171;
(9) Ibn Kathir, al-Bidayah, VII, 286.