《旧五代史·后唐·皇纪上》
这时，各路勤王的军队云集京师四周，但因为黄巢贼军势力正盛，不敢交锋。
是时，诸道勤王之师云集京畿，然以贼势尚炽，未敢争锋。
At this time,勤王 troops from all over the country gathered around Beijing, but because Huang Chao's rebel army was at its peak, they did not dare to fight.