《资治通鉴·晋纪·晋纪九》
宣于之对刘渊说： 到了辛未年，才能得到洛阳，现在晋朝气运还旺盛，大军不撤回来，一定失败。 
宣于修之言于渊曰： 岁在辛未，乃得洛阳。今晋气犹盛，大军不归，必败。 
Xuanyu told Liu Yuan: "We can only obtain Luoyang in the Xinwei year. The Jin dynasty is still flourishing, and if the army does not return, they will surely fail."