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:3:98 –

Say, "O People of the Scripture, why do you disbelieve in the verses of Allah while Allah is Witness over what you do?"  

Say: ‘O People of the Scripture, why do you disbelieve in God’s verses, that is, the Qur’ān, when God is Witness of what you do?’, and will requite you for it?
القرآن:٣:٩٨ –

قُلْ يَا أَهْلَ الْكِتَابِ لِمَ تَكْفُرُونَ بِآيَاتِ اللَّهِ وَاللَّهُ شَهِيدٌ عَلَىٰ مَا تَعْمَلُونَ  

{قل يا أهل الكتاب لم تكفرون بآيات الله} القرآن {والله شهيد على ما تعملون} فيجازيكم عليه.

See similar narrations below:

Collected by Qurʾān
quran:3:70 –

O People of the Scripture, why do you disbelieve in the verses of Allah while you witness ˹to their truth˺?  

O People of the Scripture! Why do you disbelieve in God’s verses, the Qur’ān, that includes all the descriptions of Muhammad (s), when you yourselves bear witness?, ˹when˺ you know that it is the truth.
القرآن:٣:٧٠ –

يَا أَهْلَ الْكِتَابِ لِمَ تَكْفُرُونَ بِآيَاتِ اللَّهِ وَأَنْتُمْ تَشْهَدُونَ  

{يا أهل الكتاب لِمَ تكفرون بآيات الله} القرآن المشتمل على نعت محمد ﷺ {وأنتم تشهدون} تعلمون أنه الحق.