2. He said: Abu Bakr Muhammad ibn Umar al-Ji’abi reported from Ishaq ibn Muhammad, who reported from Zaid ibn al-Muaddal, from Saif ibn Umar, from Muhammad ibn Kuraib, from his father, from Abdullah ibn Abbas that the Prophet, peace be upon him and his progeny, said:

"Listen and obey those whom Allah has granted the authority - for that is the system of Islam."