《明史·列传·卷一百七十一》
父亲去世，他在墓侧守丧，三年不入室。
父忧，庐墓侧，终丧不入内。
His father died, and he kept mourning by the grave for three years without entering a room.
<s>[INST] Translate the following Classical Chinese text into English: 父忧，庐墓侧，终丧不入内。 [/INST] His father died, and he kept mourning by the grave for three years without entering a room.</s>
Translate the following Classical Chinese text into English: 父忧，庐墓侧，终丧不入内。
user
His father died, and he kept mourning by the grave for three years without entering a room.
assistant