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.
quran:15:50

And that it is My punishment which is the painful punishment.  

and that My chastisement, of those who are disobedient, is the painful chastisement.
القرآن:١٥:٥٠

وَأَنَّ عَذَابِي هُوَ الْعَذَابُ الْأَلِيمُ  

{وأن عذابي} للعصاة {هو العذاب الأليم} المؤلم.