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:19:70 –

Then, surely it is We who are most knowing of those most worthy of burning therein.  

Then indeed We shall know best those most deserving of it, most worthy of ˹being in˺ Hell, the most hardened of them and others ˹like them˺, for the burning, for the admission ˹into it˺ and the scorching ˹therein˺, and We shall start with them (˹siliyyan is˺ originally ˹formed as˺ salawiyyun, from ˹the verb˺ saliya or salaya).
القرآن:١٩:٧٠ –

ثُمَّ لَنَحْنُ أَعْلَمُ بِالَّذِينَ هُمْ أَوْلَىٰ بِهَا صِلِيًّا  

{ثم لنحن أعلم بالذين هم أولى بها} أحق بجهنم الأشد وغيره منهم {صليا} دخولا واحتراقا فنبدأ بهم وأصله صلوي من صلي بكسر اللام وفتحها.