《旧唐书·列传·卷五十二》
行冲于是召引国子博士范行恭、四门助教施敬本研讨削减，缩成五十卷，十四年八月献给皇上。
行冲于是引国子博士范行恭、四门助教施敬本检讨刊削，勒成五十卷，十四年八月奏上之。
Xingchong then consulted with Imperial Academy Doctorate Fan Xinggong and Imperial Academy Assistant Lecturer Shi Jingben to discuss the editing and abridgment, condensing the work to 50 volumes. It was submitted to the emperor in the eighth month of the 14th year.