MAULIVI ABDUL AZIZ <br/><br/>
HISTORY OF ISLAM UMAR IBN AL-KHATTAB  AL-KHULAFA AR-RASHIDUN 

 - RIYADH  DARUSSALAM  2012 
 - 141 
 - .
<br/><br/> Umar bin al-Khattab, the Second Khalifa of the Muslims Shibli, his biographer, says that in his youth he grazed camels. Before accepting Islam, Umar was one of the most rabid enemies of Muhammad, the Messenger of God. 
<br/><br/><label>ISBN: </label>9786035000772 
<br/><br/><label>Dewey Class. No.: </label> / AZIZ-U