《旧唐书·本纪·卷十七》
初九，调原太子宾客分司东都白居易接替杨汝士出任同州刺史，任杨汝士为驾部侍郎。
辛亥，以太子宾客分司东都白居易为同州刺史，代杨汝士；以汝士为驾部侍郎。
On the ninth day, the former Prince's Guest, who was separated from the Eastern Capital, Bai Juyi, was transferred to take over Yang Rush from Tongzhou Prefect, and Yang Rush was appointed as the Ministry of Driver's Servant.