Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:2:101 –

And when a messenger from Allah came to them confirming that which was with them, a party of those who had been given the Scripture threw the Scripture of Allah behind their backs as if they did not know ˹what it contained˺.  

When there came to them a messenger from God, namely, Muhammad (s), confirming what was with them, a party of them who were given the Scripture have cast away the Scripture of God, that is, the Torah, behind their backs, that is to say, they have not acted according to what it said about belief in the Messenger and otherwise; as though they did not know, what is contained in it, to the effect that he is a true Prophet, or that it is the Book of God.
القرآن:٢:١٠١ –

وَلَمَّا جَاءَهُمْ رَسُولٌ مِنْ عِنْدِ اللَّهِ مُصَدِّقٌ لِمَا مَعَهُمْ نَبَذَ فَرِيقٌ مِنَ الَّذِينَ أُوتُوا الْكِتَابَ كِتَابَ اللَّهِ وَرَاءَ ظُهُورِهِمْ كَأَنَّهُمْ لَا يَعْلَمُونَ  

{ولما جاءهم رسول من عند الله} محمد {مصدق لما معهم نبذ فريق من الذين أوتوا الكتاب كتاب الله} أي التوراة {وراء ظهورهم} أي لم يعملوا بما فيها من الإيمان بالرسول وغيره {كأنهم لا يعلمون} ما فيها من أنه نبي حق أو أنها كتاب الله.