Az-Zina is the Arabic term for unlawful sexual intercourse, including adultery and fornication. In Islamic law (Sharia), Zina is considered a major sin and a grave social evil that threatens the stability of the family unit and the lineage of the community. The Quran strictly prohibits Zina and even warns believers not to "go near" it, implying that one should avoid the paths leading to it. Islamic ethics emphasize modesty (Haya) and the sanctity of marriage as the only legitimate context for physical intimacy, aiming to protect the moral fabric of society. The Quran commands: "And do not approach unlawful sexual intercourse (zina). Indeed, it is ever an abomination and an evil way" (17:32). The prohibition is not just of the act but of all that leads to it: looking, touching, being alone together, and indecent speech. Zina is a major sin. The Prophet said: "The one who commits zina is not a believer while he is committing it" (Bukhari). This means that faith is diminished by the act. The punishment for zina in Islamic law is severe: for married persons, stoning (rajm); for unmarried, one hundred lashes. The strict evidentiary requirements (four eyewitnesses) make it difficult to apply, reflecting the principle that punishments are deterrents, not to be applied lightly. Islam provides legitimate alternatives: marriage (nikah) is encouraged; fasting is recommended for those who cannot marry. The Prophet said: "O young men, whoever among you can afford it, let him marry. Whoever cannot, let him fast, for it will be a shield for him" (Bukhari). For believers, zina is to be avoided. They guard their modesty, lower their gaze, and avoid situations that could lead to sin. They seek marriage when able and fast when not. They know that Allah is Forgiving and Merciful, and they repent if they fall into sin. The ultimate protection is faith and taqwa. The believer strives to maintain purity, seeking Allah's forgiveness and hoping for His mercy.