《宋史·列传·卷二百三十四》
雄州的大侩王友直曾致书刘豫让他招抚李成，说刘光世、吕颐浩不是国家中兴的将相之才，后被人告发，下诏审问他并用刑法惩处他。
雄州大侩王友直尝抵豫书招李成，谓刘光世、吕颐浩非中兴将相才，后为人所诉，诏鞫而刑之。
Xiongzhou's great bandit Wang Youzhi sent a letter to Liu Yu asking him to pacify Li Cheng, saying that Liu Guangshi and Lü Yizhao were not the generals and prime ministers of the country's revival. He was later accused, and ordered to be interrogated and punished by law.