《后汉书·列传·章帝八王列传》
刘庆多病，有时不安，帝早晚问讯，送饭送药，关心备至。
庆多被病，或时不安，帝朝夕问讯，进膳药，所以垂意甚备。
Liu Qing was often sick and sometimes restless. The emperor asked about his condition morning and evening, sending food and medicine, and showing great concern.