《后汉书·列传·荀韩钟陈列传》
《易》说： 帝乙归妹，以祉元吉。 妇人去嫁叫归，是说汤按娶礼归他的妹妹于诸侯。
《易》曰 帝乙归妹，以祉元吉 妇人谓嫁曰归，言汤以娶礼归其妹于诸侯也。
The "Book of Changes" says: Emperor Yi married his sister to others, and it was a great auspiciousness. The woman went to marry and called it a return, meaning that King Tang married his sister to the princes according to the marriage ceremony.