Surah Al-A'raf 7:33

قُلْ إِنَّمَا حَرَّمَ رَبِّىَ ٱلْفَوَٰحِشَ مَا ظَهَرَ مِنْهَا وَمَا بَطَنَ وَٱلْإِثْمَ وَٱلْبَغْىَ بِغَيْرِ ٱلْحَقِّ وَأَن تُشْرِكُوا۟ بِٱللَّهِ مَا لَمْ يُنَزِّلْ بِهِۦ سُلْطَـٰنًا وَأَن تَقُولُوا۟ عَلَى ٱللَّهِ مَا لَا تَعْلَمُونَ

Say, "My Lord has only forbidden immoralities - what is apparent of them and what is concealed - and sin, and oppression without right, and that you associate with Allāh that for which He has not sent down authority, and that you say about Allāh that which you do not know."

Translation: Saheeh International

Tafsir

Say ‘My Lord forbids only indecencies grave sins such as fornication such of them as are apparent and such as are hidden that is the overt ones and the secret ones and sin the act of disobedience and wrongful insolence against people namely oppression and that you associate with God that for which He never revealed …

Excerpt from Tafsir al-Jalalayn, commentary on 7:33, via Quran.com. The reader has the full commentary and 9 more tafsirs.