《旧五代史·后唐·列传八》
观察天象的人说，西南有黑气像斗鸡形状，会有战事发生。符存审说： 我方准备决战，而且表现在天象，这不是得到上天赞许了吗！ 
会望气者言，西南黑气如斗鸡之状，当有战阵，存审曰： 我方欲决战，而形于气象，得非天赞欤！ 
Astrologers said that there was a black gas in the southwest shaped like a fighting cock, and that there would be a battle. Fu Cunzheng said, "Our side is prepared to fight a decisive battle, and it is also reflected in the stars. Doesn't this mean that Heaven has approved us?"