Quran 3:160 from Surah Aal-i-Imraan on Divine Marvels.
إِن يَنصُرۡكُمُ ٱللَّهُ فَلَا غَالِبَ لَكُمۡۖ وَإِن يَخۡذُلۡكُمۡ فَمَن ذَا ٱلَّذِي يَنصُرُكُم مِّنۢ بَعۡدِهِۦۗ وَعَلَى ٱللَّهِ فَلۡيَتَوَكَّلِ ٱلۡمُؤۡمِنُونَ
English translation: If helps you Allah then not (can) overcome [for] you and if He forsakes you then who (is) the one who can help you from after Him And on Allah let put (their) trust the believers
Transliteration: in yansur'kumu al-lahu fala ghaliba lakum wa-in yakhdhul'kum faman dha alladhi yansurukum min ba'dihi wa'ala al-lahi falyatawakkali al-mu'minuna