Prohibition of Falsehood

فَمَنْ أَظْلَمُ مِمَّنِ ٱفْتَرَىٰ عَلَى ٱللَّهِ كَذِبًا أَوْ كَذَّبَ بِـَٔايَـٰتِهِۦٓ ۚ إِنَّهُۥ لَا يُفْلِحُ ٱلْمُجْرِمُونَ

So who is more unjust than he who invents a lie about Allāh or denies His signs? Indeed, the criminals will not succeed.

وَلَا تَقُولُوا۟ لِمَا تَصِفُ أَلْسِنَتُكُمُ ٱلْكَذِبَ هَـٰذَا حَلَـٰلٌ وَهَـٰذَا حَرَامٌ لِّتَفْتَرُوا۟ عَلَى ٱللَّهِ ٱلْكَذِبَ ۚ إِنَّ ٱلَّذِينَ يَفْتَرُونَ عَلَى ٱللَّهِ ٱلْكَذِبَ لَا يُفْلِحُونَ

And do not say about what your tongues assert of untruth, "This is lawful and this is unlawful," to invent falsehood about Allāh. Indeed, those who invent falsehood about Allāh will not succeed.