Severity Of Sins – Comparing Adultery With Backbiting
This is correct, before marriage prohibition is principally on grounds of Sadd-e-Zariya. Human race could have faltered in this matter by considering pre-marital relationships fine, so that doubtful line was also cleared by Allah and this was also declared prohibited in Islam. However, this does not mean that our nature also considers it fine – Rigth from the start of conscious human race, it is known that such relationships can only be done with one’s marital partner. Adam and Eve were both husband and wife and this innate dislike of sexual relationships in the absence of marriage has been transmitted as such ever since. Please also see : Discussion 52319