"Sir, said the young man, for God’s sake do not stop me, let me go, I cannot without horror look upon that abominable barber; though he is born in a country where all the natives are whites, he resembles an Ethiopian; and when all is come to all, his soul is yet blacker and yet more horrible than his face."
(I, pp. 127-8; IV, pp. 122 in ECCO; pp. 261-2 in Mack's ed.)
See Antoine Galland's Mille et une Nuit (1704-1717); translated into English from 1706 to 1721 (six volumes published in French and translated into English by 1706; 1717 vols. xi and xii published and translated).
Some text from Tales of the East: Comprising the Most Popular Romances of Oriental Origin, ed. Henry Weber, 3 vols. (Edinburgh: Ballantyne, 1812). <Link to Google Books>
Reading Arabian Nights Entertainments, ed. Robert L. Mack (Oxford: OUP, 1995). [Mack bases his text on Weber's Tales of the East].
Text confirmed in ECCO.