《旧唐书·列传·卷七十八》
元帅广平王率朔方及各族兵号称二十万去收复长安，出师的那天，百官在朝廷送别广平王，百官施礼，王答礼，致词也同样。
元帅广平王领朔方蕃汉兵号二十万来收长安，出辞之日，百僚致谒于朝堂。百僚拜，答拜，辞亦如之。
General Marshal Guangping Wang led the troops of Shuofang and various ethnic groups, claiming to have 200,000 troops, to retake Chang'an. On the day of the expedition, hundreds of officials escorted Guangping Wang at the imperial court. Hundreds of officials performed the etiquette, and the king returned the salute and gave a speech in the same way.