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:78:36 –

˹As˺ reward from your Lord, ˹a generous˺ gift ˹made due by˺ account,  

˹this will be˺ a reward from your Lord, in other words, God has rewarded them with this reward as, a gift (‘atā’an substitutes for jazā’an, ‘reward’) that is sufficing, ˹that is˺ abundant (hisāban, ˹as meaning ‘abundant’˺ derives from their saying a‘tānī fa-ahsabanī, ‘he gave me so abundantly that I said, “that is enough for me”’ ˹hasbī˺),
القرآن:٧٨:٣٦ –

جَزَاءً مِنْ رَبِّكَ عَطَاءً حِسَابًا  

{جزاءً من ربك} أي جزاهم الله بذلك جزاء {عطاءً} بدل من جزاء {حسابا} أي كثيرا، من قولهم: أعطاني فأحسبني، أي أكثر علي حتى قلت حسبي.