《魏书·列传·卷六十二》
当时杜洛周陷于中山，这个时候，皇帝声称将亲征北方，以尔朱荣为左军，未成行。
时杜洛周陷中山，于时车驾声将北讨，以荣为左军，不行。
At that time, Doulou Zhou was trapped in Zhongshan. The emperor claimed that he would conquer the north and appointed Erzhu Rong as his left army, but it was not carried out at last.