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:44:4 –

On that night is made distinct every precise matter -  

In it, that is to say, on the Night of Ordainment, or on the eve of the middle of Sha‘bān, every definitive matter, that has been fixed, with regard to the provisions and the terms of life and other things ˹decreed by God˺ for the entire year until that same night again ˹the following year˺, is distinguished, is decided.
القرآن:٤٤:٤ –

فِيهَا يُفْرَقُ كُلُّ أَمْرٍ حَكِيمٍ  

{فيها} أي في ليلة القدر أو ليلة النصف من شعبان {يفرق} يفصل {كل أمر حكيم} محكم من الأرزاق والآجال وغيرهما التي تكون في السنة إلى مثل تلك الليلة.