《资治通鉴·汉纪·汉纪二十三》
太后姐姐的儿子淳于长任侍中，多次往来于东宫，为成帝传话。经过一年多，才得到太后的旨意，予以允许。
太后姊子淳于长为侍中，数往来通语东宫；岁馀，乃得太后指，许之。
The Empress Dowager's son, Chunyu Zhang, was appointed as a Wait-in-Attendant, and repeatedly visited the Crown Prince’s Palace in order to convey messages on the Emperor’s behalf. After more than a year, permission was finally granted pursuant to the Empress Dowager's imperial edict.