 Li Huaiguang also submitted a petition accusing Zhai Wenxiu of crimes, and Emperor Dezong executed Zhai in response.Only after these events occurred did Li Huaiguang rendezvous with Li Sheng, Li Jianhui, and Yang, in spring 784.Meanwhile, when Emperor Dezong sought aid from the Tibetan Empire, the Tibetan chancellor Shang Jiezan () refused to launch forces unless he could get an explicit cosigning of the aid request by Li Huaiguang, citing the Tibetan Empire's own laws about how it would only launch troops in aid if the supreme commander of the state seeking aid also agreed with the aid request.