Quran 8:45 from Surah Al-Anfaal on Divine Marvels.
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓاْ إِذَا لَقِيتُمۡ فِئَةٗ فَٱثۡبُتُواْ وَٱذۡكُرُواْ ٱللَّهَ كَثِيرٗا لَّعَلَّكُمۡ تُفۡلِحُونَ
English translation: O you who believe When you meet a force then be firm and remember Allah much so that you may (be) successful
Transliteration: yaayyuha alladhina amanu idha laqitum fi-atan fa-uth'butu wa-udh'kuru al-laha kathiran la'allakum tuf'lihuna