Surah Al-An'am, ayah 157

6:157

أَوۡ تَقُولُواْ لَوۡ أَنَّآ أُنزِلَ عَلَيۡنَا ٱلۡكِتَٰبُ لَكُنَّآ أَهۡدَىٰ مِنۡهُمۡۚ فَقَدۡ جَآءَكُم بَيِّنَةٞ مِّن رَّبِّكُمۡ وَهُدٗى وَرَحۡمَةٞۚ فَمَنۡ أَظۡلَمُ مِمَّن كَذَّبَ بِـَٔايَٰتِ ٱللَّهِ وَصَدَفَ عَنۡهَاۗ سَنَجۡزِي ٱلَّذِينَ يَصۡدِفُونَ عَنۡ ءَايَٰتِنَا سُوٓءَ ٱلۡعَذَابِ بِمَا كَانُواْ يَصۡدِفُونَ ١٥٧

Aw taqūlū law annā unzila 'alaynal-kitābu lakunnā ahdā minhum faqad jā'akum bayyinatum mir rabbikum wahudan warahmatun faman azlamu mimman kaddhaba bi'āyātillāhi wasadafa 'anhā sanajzil-ladhīna yasdifūna 'an āyātinā sū'al-'adhābi bimā kānū yasdifūn

Or lest you say, "If only the Scripture had been revealed to us, we would have been better guided than they." So there has [now] come to you a clear evidence from your Lord and a guidance and mercy. Then who is more unjust than one who denies the verses of Allāh and turns away from them? We will recompense those who turn away from Our verses with the worst of punishment for their having turned away.