The Hour

Sahih Bukhari
Volume 7, Book 69, Number 483:
Narrated Anas (radiallaho unho):

I heard from Allah's Apostle (salallaho alaihi wasallam) a narration which none other than I will narrate to you. The Prophet (salallaho alaihi wasallam), said, "From among the portents of the Hour are the following: General ignorance (in religious affairs) will prevail, (religious) knowledge will decrease, illegal sexual intercourse will prevail, alcoholic drinks will be drunk (in abundance), men will decrease and women will increase so much so that for every fifty women there will be one man to look after them."