(3efgL YeQ Hf GdNWGH ai GdJTQjY (B:s (3OQGSI eSJhYHI dabg YeQ h JfXjeGJg (B/s - (3HdJGLi, eMeOs (al-Qahirah : Dar al-Fikr al-'Arabi, 1970)
Keywords: 'Umar ibn al-Khattab, -- Caliph, -- d. 644