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:3:171 –

They receive good tidings of favor from Allah and bounty and ˹of the fact˺ that Allah does not allow the reward of believers to be lost -  

Joyful in grace, in the reward, and bounty, in addition to it, from God, and that (read wa-anna as a supplement to ni‘matin, or wa-inna to denote a new clause) God does not let the wage of believers go to waste, but rewards them.
القرآن:٣:١٧١ –

يَسْتَبْشِرُونَ بِنِعْمَةٍ مِنَ اللَّهِ وَفَضْلٍ وَأَنَّ اللَّهَ لَا يُضِيعُ أَجْرَ الْمُؤْمِنِينَ  

{يستبشرون بنعمة} ثوابٍ {من الله وفضل} زيادة عليه {وأنَّ} بالفتح عطفاً على نعمة وبالكسر استئنافا {الله لا يضيع أجر المؤمنين} بل يأجرهم.