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:39:16 –

They will have canopies of fire above them and below them, canopies. By that Allah threatens His servants. O My servants, then fear Me.  

Above them they will have canopies, layers, of fire, and beneath them ˹they will have ˹similar˺ canopies, of fire. That is what God frightens His servants with, that is, the believing ones, that they may have fear of Him — this ˹sense of the verse˺ is suggested by ˹what follows˺), “So, O servants of Mine, fear Me!”’
القرآن:٣٩:١٦ –

لَهُمْ مِنْ فَوْقِهِمْ ظُلَلٌ مِنَ النَّارِ وَمِنْ تَحْتِهِمْ ظُلَلٌ ۚ ذَٰلِكَ يُخَوِّفُ اللَّهُ بِهِ عِبَادَهُ ۚ يَا عِبَادِ فَاتَّقُونِ  

{لهم من فوقهم ظلل} طباق {من النار ومن تحتهم ظلل} من النار {ذلك يخوِّف الله به عباده} أي المؤمنين ليتقوه يدل عليه {يا عباد فاتقون}.