9. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from ‘Abd Allah ibn Sinan from Abu ‘Abdillah (a.s.) who has said the following
“To every believer Allah has assigned four things: a Satan who wants to mislead him, an unbeliever who fights him, a believer who envies him - it is the most difficult one - and a hypocrite who tracks down his mistakes (for evil purposes).”