In 642, when Emperor Taizong wanted to review the imperial historical records that the imperial historian Chu Suiliang was responsible for keeping, Chu rebuffed Emperor Taizong, stating that it would be irregular for an emperor to look at how an imperial historian was writing about him.
Emperor Taizong's inquiry into the historical records compiled by Chu Suiliang in 642 was met with resistance from Chu, who argued that it was inappropriate for an emperor to scrutinize his own portrayal in history.