Who was the second Caliph of Islam after Abu Bakr as-Siddiq (R.A) ? A Ali ibn Abi Talib (R.A) B Uthman ibn Affan (R.A) C Umar ibn al-Khattab (R.A) D Mu'awiya ibn Abi Sufyan (R.A) Submit Answer Related Islamic questions Who was the first worshipper of fire among Humans? Who threw camel intestines on the Prophet (ﷺ) during sujood, and who later killed him? Which Sahabi (R.A) was told by the Prophet (ﷺ) that he would be killed by a rebellious group? What is the name of that Prophet (A.S) who believed in Ibrahim (A.S) and migrated with him? What is the name of that Well for which Prophet (ﷺ) said, Whoever will (buy and) dig the Well will be granted Paradise? Back to All Questions