How can you say that premarital sex is a sin by using verses that only deal with the marriage(02)

How can you say that premarital sex is a sin by using verses that only deal with the marriage(02)

Video Screenshot Gallery: Premarital Sex Is Sin

Is Premarital Sex Wrong?
Is Sex Before Marriage a Sin? - incmedia
How can you say that premarital sex is a sin by using verses that only deal with the marriage