《后汉书·列传·马援列传》
马援曾到河内，看望伯春，见到其奴吉从西方回来，说伯春小弟仲舒望见吉，想问伯春有没有意外，竟不能讲话，早晚号泣，婉转风尘之中。
援间至河内，过存伯春，见其奴吉从西方还，说伯春小弟仲舒望见吉，欲问伯春无它否，竟不能言，晓夕号泣，婉转尘中。
Ma Yuan once went to Henan to visit Bochun. He met his slave Ji, who had returned from the west, and who said that Bochun’s younger brother Zhongshu had wanted to ask Ji whether Bochun was alright but could not speak. Instead, he wailed both morning and evening, and wandered around in the dust and wind.