《周书·列传·卷十五》
于礼的弟弟于智，开始时任开府，因为接受宣帝的旨意，诬告齐王宇文宪谋反，于是被封为齐国公。
礼弟智，初为开府，以受宣帝旨，告齐王宪反，遂封齐国公。
Yu Li's younger brother, Yu Zhi, first held the post of Kai Fu. He was later awarded the title of Qi Guo Gong for falsely accusing Qi Wang Yu Wenxian of rebellion by accepting Emperor Xuan's (604-618) imperial decree.