Abu Idris Khawlani says that Sayyiduna Hudhayfah bin Yaman (may Allah be pleased with him) said: By Allah, I know every tribulation that will occur between me and the Day of Resurrection more than anyone else. And it is not that the Messenger of Allah (peace and blessings be upon him) told me something secretly that he did not tell others, but the Messenger of Allah (peace and blessings be upon him) mentioned the tribulations in a gathering in which I was also present. So, while counting those tribulations, he (peace and blessings be upon him) said: Three of them are such that they will leave almost nothing untouched, and some of them are like the hot winds, some are small and some are big. Sayyiduna Hudhayfah (may Allah be pleased with him) said: (Now) all the people of that gathering have passed away except me. I am the only one remaining (and for this reason, now there is no one left who knows more about the tribulations than me).