when a messenger of god came to them confirming the revelation that they already had received a group of those who had the scripture with them threw the book of god behind their backs as if they did not know anything about it.
ولما جاءهم رسول من عند الله مصدق لما معهم نبذ فريق من الذين أوتوا الكتاب كتاب الله وراء ظهورهم كأنهم لا يعلمون