佛祖歷代通載 3.45

3.45

（十七　己未）　持一幡迎導。至彼建塔供養。乃宣王二十二年乙未歲。王無辜殺杜伯。一日出畋。見杜伯持弓矢射王中心。墮車折脊而死。事見墨子載也。

(17. Jiwei) ...carried a banner to lead the procession, proceeding there to build a stupa and make offerings. This was the twenty-second year of King Xuan, the yiwei year. The king had killed Du Bo without guilt. One day when he went out hunting, he saw Du Bo holding a bow and arrow shooting the king through the center of his chest; the king fell from his chariot, broke his spine, and died. This matter is recorded in the Mozi.