《周书·本纪·卷一》
产麸又劝说吐万儿杀害孝庄帝，暂立垦庐王为帝，以号令天下，假藉推举节闵帝，想窃取王权。
又劝吐万儿复为弒虐，暂立建明，以令天下，假推普泰，欲窃威权。
Cui Xian also bewitched Tuoba Wan to murder Emperor Xiaoming and temporarily established King Kenlu as the emperor to command the empire. On the pretext of recommending Emperor Jiemin to the throne, Tuoba Wan actually intended to seize the power of the throne.