《新唐书·列传·卷十七》
其部下埋怨，投包信于门说： 不早日降唐，父子诛灭。 
其下怨，投书于门曰： 不早附唐，父子诛。 
His subordinates complained, and wrote an anonymous letter to him: "If you do not surrender to Tang soon, you and your sons will all be killed."
<s>[INST] Take each pair of old and new sentences and unite them into a single translation that captures the core meaning: Archaic: 其下怨，投书于门曰： 不早附唐，父子诛。  Updated: 其部下埋怨，投包信于门说： 不早日降唐，父子诛灭。  [/INST] His subordinates complained, and wrote an anonymous letter to him: "If you do not surrender to Tang soon, you and your sons will all be killed."</s>
Take each pair of old and new sentences and unite them into a single translation that captures the core meaning: Archaic: 其下怨，投书于门曰： 不早附唐，父子诛。  Updated: 其部下埋怨，投包信于门说： 不早日降唐，父子诛灭。
user
His subordinates complained, and wrote an anonymous letter to him: "If you do not surrender to Tang soon, you and your sons will all be killed."
assistant