《尚书·商书·伊训》
太甲元年十二月乙丑日，伊尹在祖庙祭祀先王，侍奉嗣王恭敬地拜见先祖。
惟元祀十有二月乙丑，伊尹祠于先王。
On the day of Yi Chou in December of the first year of Tai Jia, Yi Yin worshipped the ancestors in the ancestral temple and waited for the successor to respectfully visit the ancestors.