《宋史·本纪·卷十五》
夏四月初六，辽朝派遣耶律庶几等人来祝贺同天节。
夏四月辛卯，辽遣耶律庶几等来贺同天节。
On the 6th of the fourth month of summer, the Liao Dynasty sent Yelv Shuji and others to celebrate the Tongtian Festival.
<s>[INST] Provide a modern Chinese interpretation of the following Classical Chinese passage: 夏四月辛卯，辽遣耶律庶几等来贺同天节。 [/INST] 夏四月初六，辽朝派遣耶律庶几等人来祝贺同天节。</s>
Provide a modern Chinese interpretation of the following Classical Chinese passage: 夏四月辛卯，辽遣耶律庶几等来贺同天节。
user
夏四月初六，辽朝派遣耶律庶几等人来祝贺同天节。
assistant