قُلۡ إِنَّمَا حَرَّمَ رَبِّيَ ٱلۡفَوَٰحِشَ مَا ظَهَرَ مِنۡهَا وَمَا بَطَنَ وَٱلۡإِثۡمَ وَٱلۡبَغۡيَ بِغَيۡرِ ٱلۡحَقِّ وَأَن تُشۡرِكُواْ بِٱللَّهِ مَا لَمۡ يُنَزِّلۡ بِهِۦ سُلۡطَٰنٗا وَأَن تَقُولُواْ عَلَى ٱللَّهِ مَا لَا تَعۡلَمُونَ

Qul innamaa harrama Rabbiyal fawaahisha maa zahara minhaa wa maa batana wal isma walbaghya bighairil haqqi wa an tushrikoo billaahi maa lam yunazzil bihee sultaananw wa an taqooloo 'alal laahi maa laa ta'lamoon

Say: the things that my Lord hath indeed forbidden are: shameful deeds, whether open or secret; sins and trespasses against truth or reason; assigning of partners to Allah, for which He hath given no authority; and saying things about Allah of which ye have no knowledge.

— Al-A'raf (ٱلْأَعْرَاف), 7:33