What is the religious stance on the a young man and a young woman, and is what occurred between them considered zina (unlawful sexual intercourse) necessitating the application of the hadd punishment?

A Muslim must learn the rulings of his religion to show gratitude for the blessing of guidance to Islam. What you did with the girl is fornication, and you must repent of it, because she is a stranger to you. She only becomes a wife through a legitimate marriage that has its pillars and conditions. If you both desire to marry after repentance, let it be in a lawful manner. Otherwise, you must sever the relationship. We would like to point out that the implementation of Hadd penalties is the prerogative of the Muslim ruler, and whoever commits an act that necessitates a Hadd penalty should repent and conceal his deed.