API
Biographies of the Rightly-Guided Caliphs
A book translated into English in Which Imam Ibn Kathir relates the biographies of the four rightly guided caliphs: Abu Bakr As-Sidiq, Umar ibn Al-Khattab, Uthman Ibn Affan, and Ali ibn Abi Talib in addition to the caliph Umar ibn Abdul Azeez who is regarded as one of the rightly guided caliphs.
