Al-Baqarah 140

أَمْ تَقُولُونَ إِنَّ إِبْرَٰهِـۧمَ وَإِسْمَـٰعِيلَ وَإِسْحَـٰقَ وَيَعْقُوبَ وَٱلْأَسْبَاطَ كَانُوا۟ هُودًا أَوْ نَصَـٰرَىٰ ۗ قُلْ ءَأَنتُمْ أَعْلَمُ أَمِ ٱللَّهُ ۗ وَمَنْ أَظْلَمُ مِمَّن كَتَمَ شَهَـٰدَةً عِندَهُۥ مِنَ ٱللَّهِ ۗ وَمَا ٱللَّهُ بِغَـٰفِلٍ عَمَّا تَعْمَلُونَ

am taqūlūna inna ib'rāhīma wa-is'māʿīla wa-is'ḥāqa wayaʿqūba wal-asbāṭa kānū hūdan aw naṣārā qul a-antum aʿlamu ami l-lahu waman aẓlamu mimman katama shahādatan ʿindahu mina l-lahi wamā l-lahu bighāfilin ʿammā taʿmalūna

Or do you say that Abraham and Ishmael and Isaac and Jacob and the Descendants were Jews or Christians? Say, "Are you more knowing or is Allāh?" And who is more unjust than one who conceals a testimony he has from Allāh? And Allāh is not unaware of what you do.