It is narrated from Yusayr bin Amr that he said to Sayyiduna Abu Mas'ud (al-Ansari) (may Allah be pleased with him): I had two companions to whom I used to turn (for knowledge and guidance): Hudhayfah and Abu Musa (may Allah be pleased with them both). Now I adjure you by Allah: if you have heard anything from the Messenger of Allah (peace and blessings be upon him) about the tribulations, then do tell me; otherwise guide me with your own opinion. Sayyiduna Abu Mas'ud praised and extolled Allah and then said: "Stay with the great body (al-sawad al-a'zam) of the Ummah of Muhammad (peace and blessings be upon him), for Allah Almighty will never unite the Ummah of Muhammad (peace and blessings be upon him) upon misguidance. And be patient until a righteous person finds rest (through death) or (people) find rest from a wicked person." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.