《北史·列传·卷七》
孝昌末年，灵太后失去民心，四方混乱，元劭便有异心。
孝昌末，灵太后失德，四方纷扰，劭遂有异志。
In the last year of Xiaochang, Empress Ling lost the support of the people. Amid the chaos across the country, Yuan Shao started to have a dissenting intention.