《资治通鉴·唐纪·唐纪六十七》
起初，庞勋对梁丕不经请示就杀死姚周极为愤怒，罢黜梁丕的官位，派原徐州镇将张玄稔代梁丕领掌宿州的政事，派党羽张儒、张实等率领宿州城中的军队数万人抗拒官军。
初，庞勋怒梁丕专杀姚周，黜之，使徐州旧将张玄稔代之治州事，以其党张儒、张实等将城中兵数万拒官军。
At the beginning, Pang Xun was very angry that Liang Pi killed Yao Zhou without asking his permission. He removed Liang Pi from his position, and sent the original Zhenjiang town general Zhang Xuanren to take Liang Pi's place leading Xuzhou administrative affairs. He also sent his partisans Zhang Ru, Zhang Shi, and others to lead the tens of thousands soldiers in Xuzhou city to confront the government officers.