《金史·列传·卷三十八》
琢请求说： 前代都赏赐国姓，没有归附他族的，如蒙换赐国姓，荣耀没有大于这了。 
琢请曰： 前代皆赐国姓，不系他族，如蒙更赐，荣莫大焉。 
Zhuo requested, saying: In previous generations, it was the state surname that was rewarded. There was no one who surrendered to another clan. If I am granted a change of state surname, there is no greater honor than this.