It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that he said: The Messenger of Allah (peace and blessings be upon him) said: "Indeed, the noble one, son of the noble one, son of the noble one (that is, the honoured one, son of an honoured one, whose son was honoured) is Yusuf bin Ya'qub bin Ishaq bin Ibrahim: the Prophet of Allah, son of the Prophet of Allah, grandson of the Prophet of Allah, and great-grandson of the Friend of Allah." This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs did not record it.