 Emperor Xiaowu's associate Wang Sizheng (王思政), believing that imperial forces would not be able to withstand an attack from Gao, suggested fleeing to Yuwen's domain—despite his own reservations about Yuwen's intentions.Emperor Xiaowu agreed, but at the same time summoned Heba Sheng.However, Heba Sheng did not arrive at Luoyang, while Yuwen sent forces east, commanded by Li Xian (李賢), to welcome Emperor Xiaowu.