《资治通鉴·齐纪·齐纪八》
冯性情浮华，好争好斗，冯诞屡次告戒他，然而终无悔改之迹，于是就上告文明太后和孝文帝，用棍杖狠狠教训了他一顿。
修性浮竞，诞屡戒之，不悛，乃白于太后及帝而杖之。
Feng had a frivolous and extravagant personality, and he picked fights with others. Feng Dan had repeatedly warned him, but he never showed any sign of repentance. So Feng Dan reported him to Empress Wuming and Xiao Wendi, who used rods to teach him a harsh lesson.