《汉书·纪·宣帝纪》
宣帝下诏说： 前者凤凰集于新蔡，群鸟四面环列，都向凤凰肃立，数以万计。
诏曰： 乃者凤皇集新蔡，群鸟四面行列，皆乡凤皇立，以万数。
Emperor Xuan issued an edict that said: The phoenix had previously gathered at Xincai, with tens of thousands of birds surrounding it and bowing in respect on all sides.