It was reported from Abû Hurayrah that the Prophet - sallallâhu ’alayhi wa sallam - said: "The Hour will not come until the following events have come to pass: people will compete with one another in constructing high buildings; two big groups will fight one another, and there will be many casualties - they will both be following the same religious teaching; earthquakes will increase; time will pass quickly; afflictions and killing will increase; nearly thirty dajjals will appear, each of them claiming to be a messenger from Allâh; a man will pass by a grave and say, 'Would that I were in your place'; the sun will rise from the West; when it rises and the people see it, they will all believe, but that will be the time when 'No good will it do to a soul to believe in them then, if it believed not before...' (al-An'am 6:158); and a wealthy man will worry lest no-one accept his Zakat." (al-Bukhârî, Muslim)