《魏书·帝纪·卷四》
十一月初十，北部敕勒酋长库若于，率领部属数万骑，驱赶鹿数百万头，到世祖巡视地点，世祖因此举行大规模狩猎活动，赏赐随从的官员，在大漠南部刻石铭记，记载功德。
十一月丙辰，北部敕勒莫弗库若于，率其部数万骑，驱鹿数百万，诣行在所，帝因而大狩以赐从者，勒石漠南，以记功德。
On the tenth day of the eleventh month, Ku Rouyu, the chieftain of the Northern Ch’ih-li, led tens of thousands of horsemen under his command, and drove millions of deer to the place where the sovereign was making his tour, so that the sovereign could undertake a large-scale hunt. He rewarded the officials who accompanied him and inscribed a rock in southern desert to record his merits.