《资治通鉴·隋纪·隋纪六》
春季，二月，辛未，炀帝下诏命文武百官商议出兵征伐高丽之事。一连几天，没有敢说话的人。
春，二月，辛未，诏百僚议伐高丽，数日，无敢言者。
In the second month, on the xinwei day, Emperor Yang issued an edict ordering the civil and military officials to deliberate on the plans for the campaign against Koguryŏ. For several days in a row, no one dared to speak.