12-13 Ahmad ibn Al-Hassan al-Qat’tan narrated that Abu Bakr Ahmad ibn Muhammad ibn Ubaydah al-Neishaboory quoted Abul Qasim Harun ibn Ishaq, i.e. al-Hamdani, on the authority of his uncle Ibrahim ibn Muhammad, on the authority of Zyad ibn Ilaqa and Abdul-Malik ibn Umayr,on the authority of Jabir ibn Samurah,

“My father and I were with the Prophet (MGB). I heard the Prophet (MGB) say, ‘There will be twelve Leaders after me.’ Then the Prophet (MGB) lowered his voice. I asked my father, ‘What did he (MGB) say when he lowered his voice?’ My father said, ‘The Prophet (MGB) said, ‘They are all from the Quraysh.’”