Qur'an 8:45

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ إِذَا لَقِيتُمْ فِئَةً فَٱثْبُتُوا۟ وَٱذْكُرُوا۟ ٱللَّهَ كَثِيرًا لَّعَلَّكُمْ تُفْلِحُونَ

“O you who have believed, when you encounter a company [from the enemy forces], stand firm and remember Allāh much that you may be successful.”

Al-Anfaal 8:45 · Saheeh International