《太平广记·卷五十三·神仙五十三》
当时唐宣宗觉得这事极奇异，派宫中使者征召他入宫，他坚决推辞不来。
时宣宗极以为异，遣中使征入内，固辞不就。
At that time Emperor Xuān Zong of the Tang dynasty thought this matter extremely strange and sent a palace emissary to summon him to the palace, but he resolutely declined to come.