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:14:47 –

So never think that Allah will fail in His promise to His messengers. Indeed, Allah is Exalted in Might and Owner of Retribution.  

So do not suppose that God will fail ˹to keep˺ His promise, of victory, to His messengers. Truly God is Mighty, Victor, nothing able to escape Him, Lord of Retribution, against those who disobey Him.
القرآن:١٤:٤٧ –

فَلَا تَحْسَبَنَّ اللَّهَ مُخْلِفَ وَعْدِهِ رُسُلَهُ ۗ إِنَّ اللَّهَ عَزِيزٌ ذُو انْتِقَامٍ  

{فلا تحسبنَّ الله مخلف وعده رسله} بالنصر {إن الله عزيز} غالب لا يعجزه شيء {ذو انتقام} ممن عصاه.