Bukhari Vol. 7 : No. 158

Narrated Anas (Radi-Allahu 'anhu):

I will narrate to you a Hadith I heard from Allah's Apostle (Sallallahu
'Alaihi Wa Sallam) and none other than I will tell you of it. I heard
Allah's Apostle (Sallallahu 'Alaihi Wa Sallam) saying, "From among the
portents of the Hour are the following: Religious knowledge will be taken
away; General ignorance (in religious matters) will increase; illegal
sexual intercourse will prevail: Drinking of alcoholic drinks will prevail.
Men will decrease in number, and women will increase in number, so much so
that fifty women will be looked after by one man."

Bukhari Vol. 7 : No. 158