12-12 Ahmad ibn al-Hassan al-Qat’tan narrated that Al-Nue’man ibn Ahmad ibn Na’eem al-Vaseti quoted Ahmad ibn Senan al-Qat’tan on the authority of Abu Usamah, on the authority of Mujalid, on the authority of Amer, on the authority of Masruq that a man came to see Abdullah ibn Masood and asked him, ‘O Aba Abdul Rahman! Has your Prophet told you how many successors there will be after him?’ He replied, “Yes. No one had asked me this question before. You asked it although you are the youngest of them all. Yes. The Prophet (MGB) said,

‘There will be twelve successors after me - as many as the Israelite chiefs after Moses (MGB).’”