Quran Al-An'am 6:156
أَن تَقُولُوٓاْ إِنَّمَآ أُنزِلَ ٱلۡكِتَٰبُ عَلَىٰ طَآئِفَتَيۡنِ مِن قَبۡلِنَا وَإِن كُنَّا عَن دِرَاسَتِهِمۡ لَغَٰفِلِينَ ١٥٦
Translation
[We revealed it] lest you say, "The Scripture was only sent down to two groups before us, but we were of their study unaware,"