Chapter 52: Characteristics of The Hypocrites And Rulings Concerning Them
Qais reported: I said to 'Ammar: What is your opinion about that which you have done in case (of your siding with Hadrat 'Ali)? Is it your personal opinion or something you got from Allah' s Messenger (ﷺ)? 'Ammar said: We have got nothing from Allah' s Messenger (ﷺ) which people at large did not get, but Hudhaifa told me that Allah' s Apostle (ﷺ) had especially told him amongst his Companion, that there would be twelve hypocrites out of whom eight would not get into Paradise, until a camel would be able to pass through the needle hole. The ulcer would be itself sufficient (to kill) eight. So far as four are concerned, I do not remember what Shu' ba said about them.
Sahih Muslim 2779a