《宋书·志·卷三十一》
义熙八年十月，未下雨这年秋天，朝廷军队西进征讨刘毅，并分派军队讨伐蜀。
义熙八年十月，不雨。是秋，王师西讨刘毅；分遣伐蜀。
In October of the eighth year of Yixi, there was no rain. In autumn of this year, the court army marched west to conquer Liu Yi and sent troops to conquer Shu.