《资治通鉴·唐纪·唐纪十四》
死者的父母们听说此事后，都说： 我们的儿子死了，皇上亲自为他们哭灵，死还有什么遗憾！ 
其父母闻之，曰： 吾儿死而天子哭之，死何所恨！ 
When the parents of the dead heard this, they all said: "Our son is dead, and the emperor has personally mourned for them. What regrets do I have for his death?"
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 其父母闻之，曰： 吾儿死而天子哭之，死何所恨！  [/INST] When the parents of the dead heard this, they all said: "Our son is dead, and the emperor has personally mourned for them. What regrets do I have for his death?"</s>
Explain the meaning of this Classical Chinese passage in English: 其父母闻之，曰： 吾儿死而天子哭之，死何所恨！
user
When the parents of the dead heard this, they all said: "Our son is dead, and the emperor has personally mourned for them. What regrets do I have for his death?"
assistant