Asad ad-Dīn Shīrkūh bin Shādhī (in
Shirkuh is a
an able and energetic warrior, eager for glory and of wide experience in military affairs. Generous far beyond the resources of his patrimony, Shirkuh was beloved by his followers because of this munificence. He was small of stature, very stout and fat and already advanced in years. Though of lowly origin, he had become rich and risen by merit from his humble estate to the rank of prince. He was afflicted with
cataractin one eye. He was a man of great endurance under hardships, one who bore hunger and thirst with an equanimity quite unusual for that time of life.