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:16:47 –

Or that He would not seize them gradually ˹in a state of dread˺? But indeed, your Lord is Kind and Merciful.  

Or that He will not seize them amid ˹growing˺ fear?, ˹amid˺ a gradual diminishing ˹of their numbers˺ little by little, until all are destroyed (‘alā takhawwufin is a circumstantial qualifier referring to the subject of the verb ˹God˺ or the object). Indeed then your Lord is Gentle, Merciful, insofar as He does not hasten for them their punishment.
القرآن:١٦:٤٧ –

أَوْ يَأْخُذَهُمْ عَلَىٰ تَخَوُّفٍ فَإِنَّ رَبَّكُمْ لَرَءُوفٌ رَحِيمٌ  

{أو يأخذهم على تخوف} تنقص شيئاً فشيئاً حتى يهلك الجميع حال من الفاعل أو المفعول {فإن ربكم لرءُوف رحيم} حيث لم يعاجلهم بالعقوبة.