Note 578 — Chapter VI
David Shea translation
Rás í , the son of Mukteder, was the twentieth khalif of the Abbasides. His reign began in the year of the Hejira 322, A. D. 933, and ended in 329, A. D. 940. The period included between the beginning of the reign of Mâtemed and the end of that of Rási, is seventy-one years, differing by two from the period above stated; the minor absence might have begun two years before Mâtemed’s reign.