《周书·本纪·卷六》
戊寅，从东伐返回。
戊寅，至自东伐。
On Wuyin Day, we returned from the eastern expedition.
<s>[INST] Convert the following English text into Classical Chinese: On Wuyin Day, we returned from the eastern expedition. [/INST] 戊寅，至自东伐。</s>
Convert the following English text into Classical Chinese: On Wuyin Day, we returned from the eastern expedition.
user
戊寅，至自东伐。
assistant