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:13:20 –

Those who fulfill the covenant of Allah and do not break the contract,  

such as fulfil God’s covenant, ˹meaning˺ the one that was taken from them while they were still atoms — or ˹meaning˺ any covenant — and do not break the pact, by abandoning belief, or ˹religious˺ obligations;
القرآن:١٣:٢٠ –

الَّذِينَ يُوفُونَ بِعَهْدِ اللَّهِ وَلَا يَنْقُضُونَ الْمِيثَاقَ  

{الذين يوفون بعهد الله} المأخوذ عليهم وهم في عالم الذر أو كل عهد {ولا ينقضون الميثاق} بترك الأيمان أو الفرائض.