《资治通鉴·唐纪·唐纪五十一》
裴延龄上奏声称官吏太多，从今以后，对于官吏中出现的缺员，请暂且不要补充，收取这部分薪俸，用来充实国家的库存。
裴延龄奏管官吏太多，自今缺员请且勿补，收其俸以实府库。
Pei Yanling presented a memorial stating that there were too many officials. From now on, when there are vacancies among officials, do not fill them temporarily, and collect this part of salary to enrich the state treasury.