《太平广记·卷二百九十八·神八》
于是，仆射刘仁轨奉旨来到华山，向李播询问去泰山祭祀天地之事。
因遣仆射刘仁轨至华山，问播封禅事。
So, Liu Rengui, the servant, came to Mount Hua on a mission to ask Li Bo about the matter of going to Mount Tai to worship Heaven and Earth.