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:65:10 –

Allah has prepared for them a severe punishment; so fear Allah, O you of understanding who have believed. Allah has sent down to you the Qur'an.  

God has prepared for them a severe chastisement (the reiteration of the threat is for emphasis). So fear God, O people of pith, O possessors of intellect, ˹you˺ who believe! (this is a description of the vocative, or an explication of it) God has certainly revealed to you a ˹source of˺ remembrance, that is, the Qur’ān;
القرآن:٦٥:١٠ –

أَعَدَّ اللَّهُ لَهُمْ عَذَابًا شَدِيدًا ۖ فَاتَّقُوا اللَّهَ يَا أُولِي الْأَلْبَابِ الَّذِينَ آمَنُوا ۚ قَدْ أَنْزَلَ اللَّهُ إِلَيْكُمْ ذِكْرًا  

{أعد الله لهم عذابا شديدا} تكرير الوعيد توكيد {فاتقوا الله يا أولي الألباب} أصحاب العقول {الذين آمنوا} نعت للمنادى أو بيان له {قد أنزل الله إليكم ذكرا} هو القرآن.