《新五代史·世家·南唐世家第二》
后来李昪从润州前来朝拜，徐知训和他在山光寺饮酒，又想谋害他，徐知谏把他的阴谋告诉李昪，李昪起身逃去。
后昪自润州入觐，知训与饮于山光寺，又欲害之，徐知谏以其谋告昪，昪起遁去。
Later Li Bian came from Runzhou to pay his respect, Xu Zhixun and he drank in Shanguang Temple, he wanted to murder him again, Xu Zhijian told Li Bian his plot, Li Bian got up and ran away.