《宋史·本纪·卷十九》
二十六日，任命宁远军节度观察使留后世雄为崇信军节度使，封为安定郡王。
癸巳，以宁远军节度观察留后世雄为崇信军节度使，封安定郡王。
On the 26th, Ningyuan Army Jiedushi Guancha Shi Yuhou Shixiong was appointed as Chongxin Army Jiedushi and enfeoffed as the Prince of Ding'an County.