《北史·本记·卷三》
五月十三日，在文宣堂宴请四庙子孙。皇帝亲自和他们排列年龄长幼，按照自家人行礼拜见。
五月壬戌，宴四庙子孙于宣文堂，帝亲与之齿，行家人礼。
On the thirteenth day of the fifth month, hosting a banquet for the descendants of the four temples in Wenxuan Hall. The emperor personally arranged them in order of age and had them pay their respects as if they were his own family.