《新唐书·列传·卷一百四十六》
后因年老推荐弟思敬为保大军兵马留后，不久即任节度使。
以老荐弟思敬为保大军兵马留后，俄为节度使。
Later, due to his old age, he recommended his younger brother Sixing to be the commander of the remaining soldiers of the army, and soon became the military governor.