《隋书·列传·卷三十》
法尚发觉了他们的诈谋，闭门不纳，段王旬于是围城。
法尚觉其诈，闭门不纳，珣遂围之。
Fashang noticed their conspiracy and closed the gates to keep them out, Duan Wangxun then besieged the city.
<s>[INST] Convert the following modern Chinese text into Classical Chinese: 法尚发觉了他们的诈谋，闭门不纳，段王旬于是围城。 [/INST] 法尚觉其诈，闭门不纳，珣遂围之。</s>
Convert the following modern Chinese text into Classical Chinese: 法尚发觉了他们的诈谋，闭门不纳，段王旬于是围城。
user
法尚觉其诈，闭门不纳，珣遂围之。
assistant