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:26:189 –

And they denied him, so the punishment of the day of the black cloud seized them. Indeed, it was the punishment of a terrible day.  

But they denied him, so they were seized by the chastisement of the day of the shade (al-zulla) — a cloud which gave them shade when they suffered a bout of extreme heat but which then rained down fire on them and they were incinerated. Assuredly it was the chastisement of a tremendous day.
القرآن:٢٦:١٨٩ –

فَكَذَّبُوهُ فَأَخَذَهُمْ عَذَابُ يَوْمِ الظُّلَّةِ ۚ إِنَّهُ كَانَ عَذَابَ يَوْمٍ عَظِيمٍ  

{فكذبوه فأخذهم عذاب يوم الظلة} هي سحابة أظلتهم بعد حر شديد أصابهم فأمطرت عليهم نارا فاحترقوا {إنه كان عذاب يوم عظيم}.