Prostitution:
The Prophet (Peace be upon him) said: 'There is no prostitution in Islam. If anyone practiced prostitution in pre-Islamic times, the child will be attributed to the master (of the slave-woman). He who claims his child without a valid marriage or ownership will neither inherit nor be inherited.' (Narrated by Abdullah ibn Abbas)
Allah's Apostle (Peace be upon him) forbade taking the price of a dog, money earned by prostitution and the earnings of a soothsayer. (Narrated by Abu Masud)
The Prophet (Peace be upon him) cursed the lady who practices tattooing and the one who gets herself tattooed, and one who eats (takes) Riba' (usury) and the one who gives it. (Narrated by Abu Juhaifa)
Men's involvement
The Holy Quran says: " If two men among you are guilty of lewdness punish them both. If they repent and amend leave them alone; for Allah is Oft-returning Most Merciful." (4.16)
Women's involvement
The Holy Quran says: "If any of your women are
guilty of lewdness take the evidence of four (reliable) witnesses from amongst
you against them; and if they testify confine them to houses until death do
claim them or Allah ordain for them some (other) way." (4.15)
Repentance of wrong doings
The Holy Quran says: "Allah accepts the repentance of those who do evil in ignorance and repent soon afterwards; to them will Allah turn in mercy; for Allah is full of knowledge and wisdom." (4.17)
Punishment of wrong doings
The Holy Quran says:
"So leave them alone until they encounter that Day of theirs wherein they shall (perforce) swoon (with terror)." (52.45)
"And verily for those who do wrong there is another punishment besides this: but most of them understand not." (52.47)
The Quran says:
"The Believers must (eventually) win through; Those
who humble themselves in their prayers; Who avoid vain talk; Who are active
in deeds of charity; Who abstain from sex; Except with those joined
to them in the marriage bond or (the captives) whom their right hands possess
for (in their case) they are free from blame; But those whose desires exceed
those limits are transgressors; Those who faithfully observe their
trust and their covenants; And who (strictly) guard their prayers;
Those will be the heirs Who will inherit Paradise: they will
dwell therein (forever)."(23.1-11)
"And those who guard their chastity; Except
with their wives and the (captives) whom their right hands possess for
(then) they are not to be blamed But those who trespass beyond this
are transgressors. " (70.29-31)