《论衡·卷二·吉验篇》
刚从母体分娩下来，其母看见他身上像一匹光洁的白绢样，那光亮径直冲上天。
其生时以夜，适免母身，母见其上若一匹练状，经上天。
As soon as he was born, his mother saw that his body resembled a piece of fine white silk, and that the light from it shone straight up into the sky.