Al-Baqara • BN-TAFSEER-IBN-E-KASEER
﴿ أَمْ تَقُولُونَ إِنَّ إِبْرَٰهِۦمَ وَإِسْمَٰعِيلَ وَإِسْحَٰقَ وَيَعْقُوبَ وَٱلْأَسْبَاطَ كَانُوا۟ هُودًا أَوْ نَصَٰرَىٰ ۗ قُلْ ءَأَنتُمْ أَعْلَمُ أَمِ ٱللَّهُ ۗ وَمَنْ أَظْلَمُ مِمَّن كَتَمَ شَهَٰدَةً عِندَهُۥ مِنَ ٱللَّهِ ۗ وَمَا ٱللَّهُ بِغَٰفِلٍ عَمَّا تَعْمَلُونَ ﴾
“"Do you claim that Abraham and Ishmael and Isaac and Jacob and their descendants were `Jews' or `Christians'?" Say: "Do you know more than God does? And who could be more wicked than he who suppresses a testimony given to him by God? Yet God is not unmindful of what you do.”
Please check ayah 2:141 for complete tafsir.