Narrated Anas:
Allah's Messenger (ﷺ) said, "From among the portents of the Hour are (the following): -1. Religious knowledge will be taken away (by the death of Religious learned men). -2. (Religious) ignorance will prevail. -3. Drinking of Alcoholic drinks (will be very common). -4. There will be prevalence of open illegal sexual intercourse.
Narrated Anas:
I will narrate to you a hadith I heard from Allah's Messenger (ﷺ) and none other than I will tell you of it. I heard Allah's Messenger (ﷺ) 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."
Narrated Anas:
I will narrate to you a narration which nobody will narrate to you after me. I heard that from the Prophet. I heard the Prophet (ﷺ) saying, "The Hour will not be established" or said: "From among the portents of the Hour is that the religious knowledge will betaken away (by the death of religious Scholars) and general ignorance (of religion) will appear; and the drinking of alcoholic drinks will be very common, and (open) illegal sexual intercourse will prevail, and men will decrease in number while women will increase so much so that, for fifty women there will only be one man to look after them."
Narrated `Abdullah and Abu Musa:
The Prophet (ﷺ) said, "Near the establishment of the Hour there will be days during which Religious ignorance will spread, knowledge will be taken away (vanish) and there will be much Al-Harj, and Al- Harj means killing."