《北史·列传·卷二十六》
大业三年，炀帝到南岳恒山祭祀，让裴矩前来助祭。
大业三年，帝有事于恆岳，咸来助祭。
In the third year of the Daye reign, Emperor Yang went to Nanyue Hengshan Mountain to offer sacrifices, and he summoned Pei Ju to assist in the sacrifice.