《金史·本纪·卷十五》
初七，命令徒单思忠祈雪，不久，天下大雪。
乙巳，命徒单思忠祈雪，已而大雪。
On the seventh, the order was given for Tandan Sixizhong to pray for snow, and soon after, considerable snowfall occurred throughout the country.
<s>[INST] 请提供这段文言文的现代汉语解释: 乙巳，命徒单思忠祈雪，已而大雪。 [/INST] 初七，命令徒单思忠祈雪，不久，天下大雪。</s>
请提供这段文言文的现代汉语解释: 乙巳，命徒单思忠祈雪，已而大雪。
user
初七，命令徒单思忠祈雪，不久，天下大雪。
assistant