Al-An'aam • EN-TAFSIR-IBN-ABBAS
﴿ أَن تَقُولُوٓا۟ إِنَّمَآ أُنزِلَ ٱلْكِتَٰبُ عَلَىٰ طَآئِفَتَيْنِ مِن قَبْلِنَا وَإِن كُنَّا عَن دِرَاسَتِهِمْ لَغَٰفِلِينَ ﴾
“It has been given to you] lest you say, "Only unto two groups of people, [both of them] before our time, has a divine writ been bestowed from on high and we were indeed unaware of their teachings";”
(Lest ye should say) so that you will not say, O people of Mecca, on the Day of Judgement: (The Scripture was revealed only to two sects) the people of two religions (before us) i.e. the Jews and Christians, (and we in sooth were unaware) ignorant (of what they read) their reading of the Torah and the Gospel;