《北史·列传·卷八十六》
丑奴继立后，忽然丢失一子，字祖惠，寻找征求不能得到。
丑奴立后，忽亡一子，字祖惠，求募不能得。
After Chounu came to power, he suddenly lost a son, whose name was Zuyi. He could not find him after searching and asking for him.
<s>[INST] Translate the following Classical Chinese text into English: 丑奴立后，忽亡一子，字祖惠，求募不能得。 [/INST] After Chounu came to power, he suddenly lost a son, whose name was Zuyi. He could not find him after searching and asking for him.</s>
Translate the following Classical Chinese text into English: 丑奴立后，忽亡一子，字祖惠，求募不能得。
user
After Chounu came to power, he suddenly lost a son, whose name was Zuyi. He could not find him after searching and asking for him.
assistant