Sahih Bukhari Volume 7, Book 67, Hadith 5233

حَدَّثَنَا حَفْصُ بْنُ عُمَرَ الْحَوْضِيُّ، حَدَّثَنَا هِشَامٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ لأُحَدِّثَنَّكُمْ حَدِيثًا سَمِعْتُهُ مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم لاَ يُحَدِّثُكُمْ بِهِ أَحَدٌ غَيْرِي، سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ‏"‏ إِنَّ مِنْ أَشْرَاطِ السَّاعَةِ أَنْ يُرْفَعَ الْعِلْمُ، وَيَكْثُرَ الْجَهْلُ وَيَكْثُرَ الزِّنَا، وَيَكْثُرَ شُرْبُ الْخَمْرِ، وَيَقِلَّ الرِّجَالُ، وَيَكْثُرَ النِّسَاءُ حَتَّى يَكُونَ لِخَمْسِينَ امْرَأَةً الْقَيِّمُ الْوَاحِدُ ‏"

Narrated By Anas : I will narrate to you a Habith I heard from Allah's Apostle and none other than I will tell you of it. I heard Allah's Apostle 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."