《资治通鉴·后梁纪·后梁纪三》
庚子，张万进派遣使者向后梁太祖进表请求归降，同时也派遣使者向晋投降。晋王命令周德威安抚他。
庚子，遣使奉表请降，亦遣使降于晋；晋王命周德威安抚之。
On gengzi day, Zhang Wanjin sends envoys to Emperor Taizu of Later Liang to request surrender, while also sending envoys to surrender to Jin. The Prince of Jin orders Zhou Dewei to pacify him.