《魏书·列传·卷九十一》
单于说： 我有这样两个美丽的女儿，怎么能把她们嫁给普通凡人，我打算把她们嫁到天上去。 
单于曰： 吾有此女，安可配人，将以与天。 
Chanyu said: I have two such beautiful daughters. How could I get them married to common people? I intend to marry them off to people from heaven.