"'One of the greatest of the wise men of Khorassán was the Imán Mowaffak of Naishápúr, a man highly honoured and reverenced,—may God rejoice his soul; his illustrious years exceeded eighty-five, and it was the universal belief that every boy who read the Koran, or studied the traditions in his presence, would assuredly attain to honour and happiness. For this cause did my father send me from Tús to Naishápúr with Abd-u-samad, the doctor of law, that I might employ myself in study and learning under the guidance of that illustrious teacher. Towards me he ever turned an eye of favour and kindness, and as his pupil I felt for him extreme affection and devotion, so that I passed four years in his service. When I first came there, I found two other pupils of mine own age newly arrived, Hakim Omar Khayyám and the ill-fated Ben Sabbáh. Both were endowed with sharpness of wit and the highest natural powers; and we three formed a close friendship together. When the Imám rose from his lectures, they used to join me, and we repeated to each other the lessons we had heard. Now Omar was a native of Naishápúr, while Hasan Ben Sabbáh's father was one Ali, a man of austere life and practice, but heretical in his creed and doctrine. One day Hasan said to me and to Khayyám, "It is a universal belief that the pupils of the Imám Mowaffak will attain to fortune. Now, if we _all_ do not attain thereto, without doubt one of us will; what then shall be our mutual pledge and bond?" We answered, "Be it what you please." "Well," he said, "let us make a vow, that to whomsoever this fortune falls, he shall share it equally with the rest, and reserve no pre-eminence for himself." "Be it so," we both replied; and on those terms we mutually pledged our words. Years rolled on, and I went from Khorassán to Transoxiana, and wandered to Ghazni and Cabul; and when I returned, I was invested with office, and rose to be administrator of affairs during the Sultanate of Sultan Alp Arslán.'