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:15:21 –

And there is not a thing but that with Us are its depositories, and We do not send it down except according to a known measure.  

And there is not a thing but that the stores thereof, the keys to its stores, are with Us, and We do not send it down except in a known measure, according to the benefits ˹of all creatures˺.
القرآن:١٥:٢١ –

وَإِنْ مِنْ شَيْءٍ إِلَّا عِنْدَنَا خَزَائِنُهُ وَمَا نُنَزِّلُهُ إِلَّا بِقَدَرٍ مَعْلُومٍ  

{وإن} ما {من} زائدة {شيء إلا عندنا خزائنه} مفاتيح خزائنه {وما ننزله إلا بقدر معلوم} على حسب المصالح.