《太平广记·卷二百五十五·嘲诮三》
唐代的中书令李敬玄被授以元帅，去征讨吐蕃，行至树敦城，听说刘尚书已丧身于吐蕃，没敢停留，便狼狈而逃。
唐中书令李敬玄为元帅，讨吐蕃，至树敦城。闻刘尚书没蕃，着靴不得，狼狈而走。
Li Jingxuan, a Zhongshu Ling in the Tang Dynasty, was granted the position of Marshal and sent to fight the Tufan. When he reached Shudun City, he heard that Liu Shangshu had died at Tufan, so he did not dare to linger, and instead escaped in a sorry state.