On the day Ling Hua's army reached the borders of Youzhou, Yan Qing had already received the message and was waiting by the roadside for the army.
Due to the presence of Du Wei in the group, he certainly couldn't travel far, and since there was no need to hide from Jiangyang City to Youzhou, taking the official road sufficed. Thus, when departing Jiangyang City, several more carriages joined the procession, not only for Du Wei and the Divine Doctor, who shared a carriage, but also for Ling Hua and Cui Yanshu.
A few carriages were protected in the middle of the procession, guarded by the vast army, marching toward Youzhou.
So, when Yan Qing saw the army approach, he saw the "Ling" character on the big flag, confirming his assumption that Ling Hua personally brought the Jinglu Army to Youzhou, leaving fifty thousand soldiers in the Capital City for defense and bringing one hundred and fifty thousand, which seemed suitable.