History of the Northern Dynasties: The emperor left Mayi with six commanderies and over four hundred thousand men, crossed south over Gouzhu Pass…
The emperor left Mayi with six commanderies and over four hundred thousand men, crossed south over Gouzhu Pass, and set out to campaign against the Later Yan.
帝親勒六軍四十餘萬南出馬邑，逾句注
Location: 北史 卷1 皇始元年
With an army of over four hundred thousand, he left Mayi, crossed Gouzhu, and set out to campaign against Murong Bao.
己亥，大舉討慕容寶，帝親勒六軍四十餘萬，南出馬邑，踰于句注，旌旗駱驛二千餘里，鼓行而前，民屋皆震。
Location: 魏書卷2·皇始元年
Place: 馬邑
Show on the map — open History of the Northern Dynasties (Beishi), Annals