Al Isra, 32 Ayah
17:32
وَلَا تَقۡرَبُواْ ٱلزِّنَىٰٓۖ إِنَّهُۥ كَانَ فَٰحِشَةٗ وَسَآءَ سَبِيلٗا ٣٢
Wa Lā Taqrabū Az-Ziná ۖ 'Innahu Kāna Fāĥishatan Wa Sā'a Sabīlāan
And do not approach unlawful sexual intercourse. Indeed, it is ever an immorality and is evil as a way.