《太平广记·卷一百四十七·定数二》
伷先是贤明的宰相的侄儿，往来在河西地界，每年都向当地官府上缴二千石。
伷先贤相之侄，往来河西，所在交二千石。
Zhou Xian is the nephew of the wise prime minister, who travels between the Hexi area and pays two thousand stones to the local government every year.