《旧唐书·本纪·卷十三》
三十日，王武俊部下守棣州的将领赵镐率棣州归附了李纳，王武俊大怒，率兵攻打李纳。
丁酉，王武俊守隶州将赵镐以郡归李纳，武俊怒，以兵攻之。
On the 30th day, Zhao Hao, the general under Wang Wujun who guarded Dizhou, led Dizhou to surrender to Li Na, Wang Wujun was furious, led the troops to attack Li Na.