《北史·本记·卷三》
八月初四，令兼员外散骑常侍邢产出使齐国。
八月乙亥，诏兼员外散骑常侍邢产使于齐。
On the fourth day of the eighth month, Xing Chan, a regular attendant of the imperial guards, was ordered to go on a diplomatic mission to the Qi state.