《资治通鉴·唐纪·唐纪四十一》
吐蕃进犯盐州、夏州，又进犯长武城；郭子仪调兵遣将前去抵抗，使吐蕃后退。
吐蕃寇盐、夏州，又寇长武；郭子仪遣将拒却之。
Tibet invaded Yan Zhou and Xiazhou, and also attacked Changwu City. Guo Ziyi dispatched troops and generals to resist, causing Tibet to retreat.