Abu Al-Aswad and His Slave-Girl

Abu al-Aswad bought a native-born slave-girl, who was blind of an eye, and she pleased him; but his people decried her to him; whereat he wondered and, turning the palms of his hands upwards, recited these two couplets:—

They find me fault with her where I default ne’er find, ✿ Save haply that a speck in either eye may show:
But if her eyes have fault, of fault her form hath none, ✿ Slim-built above the waist and heavily made below.

And this is also told of