{Lest you say on the Day of Resurrection} meaning: so that you do not say on the Day of Resurrection: {The Book was only revealed to two groups before us}, meaning: the Jews and the Christians, {and indeed we were of their study [their reading]} {unaware}.
﴿أَن تَقولُوا يَوْم الْقِيَامَة﴾ لِئَلَّا تَقُولُوا يَوْمَ الْقِيَامَةِ: ﴿إِنَّمَا أُنْزِلَ الْكِتَابُ عَلَى طَائِفَتَيْنِ مِنْ قبلنَا﴾ يَعْنِي: الْيَهُودَ وَالنَّصَارَى ﴿وَإِنْ كُنَّا عَن دراستهم﴾ [قراءتهم] ﴿لغافلين﴾.
