《晋书·志·第十章》
于是太子就按照厌降的说法，顺从国制除去丧服，在居丧之所守丧满三年。
于是太子遂以厌降之议，从国制除衰麻，谅闇终制。
So the Crown Prince followed Yan Jiang's statement, obeyed the national system to remove the mourning dress and observed mourning in the mourning place for three years.