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:3:123 –

And already had Allah given you victory at ˹the battle of˺ Badr while you were few in number. Then fear Allah; perhaps you will be grateful.  

When they were defeated, the following was revealed as a way of reminding them of God’s favour: God already gave you victory at Badr, a location between Mecca and Medina, when you were contemptible, few in number and weapons. So fear God, in order that you might be thankful, for His blessings.
القرآن:٣:١٢٣ –

وَلَقَدْ نَصَرَكُمُ اللَّهُ بِبَدْرٍ وَأَنْتُمْ أَذِلَّةٌ ۖ فَاتَّقُوا اللَّهَ لَعَلَّكُمْ تَشْكُرُونَ  

ونزل لما هزموا تذكيرا لهم بنعمة الله {ولقد نصركم الله ببدر} موضع بين مكة والمدينة {وأنتم أذلة} بقلة العدد والسلاح {فاتقوا الله لعلكم تشكرون} نعمه.