Posted on 05/19/2012 by __socrates

Wikis > Dictionary of Islam > Al-Khulafa'u'r-Rashidun

AL-KHULAFA’U ‘R-RASHIDUN الخلفاء الراشدون
“The well-directed Khalifahs.” A title given to the first four successors of Muhammad – Abu Bakr, ‘Umar (Omar), ‘Usman, and ‘Ali. It is generally held by the Sunnis that after these four reigns, Islam became corrupted, and the succession in the office of Khalifah uncertain. [KHALIFAH.]

Based on Hughes, Dictionary of Islam