《辽史·本纪·卷二》
府中多次请求择任宗室，皇上以旧制不可随意变更；请求不断，便告祭于宗庙而后授之。
府中数请择任宗室，上以旧制不可辄变；请不已，乃告于宗庙而后授之。
The Southern Palace made a request to the King to appoint a member of the Royal Family to the post. However, the King declined it, because it went against the tradition. The Southern Palace kept requesting, and finally the King made a sacrifice at the ancestral temple and then appointed a member of the Royal Family to the post.
<s>[INST] 将以下现代汉语文本改写为文言文: 府中多次请求择任宗室，皇上以旧制不可随意变更；请求不断，便告祭于宗庙而后授之。 [/INST] 府中数请择任宗室，上以旧制不可辄变；请不已，乃告于宗庙而后授之。</s>
将以下现代汉语文本改写为文言文: 府中多次请求择任宗室，皇上以旧制不可随意变更；请求不断，便告祭于宗庙而后授之。
user
府中数请择任宗室，上以旧制不可辄变；请不已，乃告于宗庙而后授之。
assistant