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:58:15 –

Allah has prepared for them a severe punishment. Indeed, it was evil that they were doing.  

God has prepared for them a severe chastisement. Evil indeed is that which they ˹are wont to˺ do, in the way of acts of disobedience.
القرآن:٥٨:١٥ –

أَعَدَّ اللَّهُ لَهُمْ عَذَابًا شَدِيدًا ۖ إِنَّهُمْ سَاءَ مَا كَانُوا يَعْمَلُونَ  

{أعد الله لهم عذابا شديدا إنهم ساء ما كانوا يعملون} من المعاصي.