أَمْ تَقُولُونَ إِنَّ إِبْرَاهِيمَ وَإِسْمَاعِيلَ وَإِسْحَقَ وَيَعْقُوبَ وَالأسْبَاطَ كَانُواْ هُودًا أَوْ نَصَارَى قُلْ أَأَنتُمْ أَعْلَمُ أَمِ اللّهُ وَمَنْ أَظْلَمُ مِمَّن كَتَمَ شَهَادَةً عِندَهُ مِنَ اللّهِ وَمَا اللّهُ بِغَافِلٍ عَمَّا تَعْمَلُونَ
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سورة البقرة
(2/140) Or do you say that Abraham and Ishmael and Isaac and Jacob and the Tribes were Jews or Christians? Do you know better, or does Allah? Who is more unjust than he who hides (conceals) what is given from Allah and witnessing Him? And Allah is not Unaware (Heedless) of what you do.
Surah Al-Baqarah