E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Khorassan [Region of the Sun].
A province of Persia, anciently called Ariana.
1
The Veiled Prophet of Khorassan. Mokanna, a prophet chief, who, being terribly deformed, wore a veil under pretence of shading the dazzling light of his countenance.
2
Terror seized her lest the love-light which encircled him should fade away, and leave him like the veiled prophet of Khorassan, a sinstained thing of clay.Lady Hardy: A Casual Acquaintance.