It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "In the last age there will be people from my Ummah who will narrate to you things that neither you nor your forefathers have heard, so keep yourselves away from them." Imam Muslim mentioned this hadith in the introduction of his book along with the reports, but did not record it in the chapters of the book, although it is sahih (authentic) on the condition of both of them, and it is needed in the matter of criticism and accreditation of narrators (al-jarh wa al-ta'dil), and I know of no hidden defect ('illah) in it.