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"The adulterer marries not but an adulteress or a Mushrikah and the adulteress none marries her except an adulterer or a Muskrik [and that means that the man who agrees to marry (have a sexual relation with) a Mushrikah (female polytheist, pagan or idolatress) or a prostitute, then surely he is either an adulterer, or a Mushrik (polytheist, pagan or idolater, etc.) And the woman who agrees to marry (have a sexual relation with) a Mushrik (polytheist, pagan or idolater) or an adulterer, then she is either a prostitute or a Mushrikah (female polytheist, pagan, or idolatress, etc.)], Such a thing is forbidden to the believers (of Islaamic Monotheism)." [An-Noor (24):3]

Narrated Anas:

I will narrate to you a Hadith and none other than I will tell you about after it. I heard Allah's Apostle saying: From among the portents of the Hour are (the following):

1. Religious knowledge will decrease (by the death of religious learned men).
2. Religious ignorance will prevail.
3. There will be prevalence of open illegal sexual intercourse.
4. Women will increase in number and men will decrease in number so much so that fifty women will be looked after by one man.

[The Book of Knowledge Volume 1, Book 3, Hadeeth 81]