廣弘明集 9.135

9.135

又蠡子被戮於齊。何為不行父術變化而自免乎。又造天地經。老子託幽王皇后腹。即幽王之子也。身為柱史。即幽王之臣也。化胡云。老子在漢為東方朔。若審爾者。幽王為犬戎所殺。豈可不愛君父與神符令不死乎。

Furthermore, Fan Li's son was executed in Qi; why did he not practice his father's arts of transformation to escape himself? Also, the Zaotiandi jing claims that Laozi was lodged in the womb of King You's queen, which makes him King You's son; as an archivist, he was King You's subject. The Huahu jing says that Laozi became Dongfang Shuo during the Han. If it were truly so, when King You was slain by the Quanrong, could he not have cared enough for his sovereign and father to give him a divine talisman to prevent his death?