《礼记·丧服小记》
庶子之所以不祭祖，就是要表明这件事该由嫡长子来做。
庶子不祭祖者，明其宗也。
The reason why concubines do not offer sacrifices to their ancestors is to show that this matter should be done by the eldest son.
<s>[INST] Translate the following Classical Chinese text into modern Chinese: 庶子不祭祖者，明其宗也。 [/INST] 庶子之所以不祭祖，就是要表明这件事该由嫡长子来做。</s>
Translate the following Classical Chinese text into modern Chinese: 庶子不祭祖者，明其宗也。
user
庶子之所以不祭祖，就是要表明这件事该由嫡长子来做。
assistant