《汉书·传·霍光金日磾传》
昌邑王取出诸侯王、列侯、二千石的绶带以及黑色、黄色绶带一起给昌邑国的郎官佩戴，把他们免为良人。
取诸侯王、列侯、二千石绶及墨缓、黄绶以并佩昌邑郎官者免奴。
King of Changyi took the ribbons of vassal kings and marquises, as well as generals, and together with the black and yellow ribbons gave them all to the minor officials of Changyi, exempting them from being ordinary people.