《太平广记·卷四十·神仙四十》
唐宣宗大中初年，有陶大白、尹子虚二位老人，相互之间情投意合，成为要好朋友。
唐大中初，有陶太白、尹子虚老人，相契为友。
In the early years of Emperor Xuanzong of Tang Dynasty, there were two old men, Tao Daming and Yin Zixu, who got along well with each other and became good friends.