《太平广记·卷四十八·神仙四十八》
然而白公对尘世无所顾恋，抛弃轩车冕服有所不惜，和那些愚昧的人根本不同，怎么知道他不是贬谪的神仙呢？
然白公脱屣烟埃，投弃轩冕，与夫昧昧者固不同也，安知非谪仙哉！
However, Bai Gong had no attachment to the mortal world, and he'd rather abandon his official robes and carriage, which made him very different from those ignorant people. How could you say that he was not a banished immortal?