Sura al-Tawbah 9:40

إِلَّا تَنصُرُوهُ فَقَدْ نَصَرَهُ ٱللَّـهُ إِذْ أَخْرَجَهُ ٱلَّذِينَ كَفَرُوا۟ ثَانِىَ ٱثْنَيْنِ إِذْ هُمَا فِى ٱلْغَارِ إِذْ يَقُولُ لِصَٰحِبِهِۦ لَا تَحْزَنْ إِنَّ ٱللَّـهَ مَعَنَا فَأَنزَلَ ٱللَّـهُ سَكِينَتَهُۥ عَلَيْهِ وَأَيَّدَهُۥ بِجُنُودٍ لَّمْ تَرَوْهَا وَجَعَلَ كَلِمَةَ ٱلَّذِينَ كَفَرُوا۟ ٱلسُّفْلَىٰ وَكَلِمَةُ ٱللَّـهِ هِىَ ٱلْعُلْيَا وَٱللَّـهُ عَزِيزٌ حَكِيمٌ

illā tanṣurūhu fa-qad naṣarahu allāhu idh akhrajahu lladhīna kafarū thāniya ithnayni idh humā fī l-ghāri idh yaqūlu li-ṣāḥibihi lā taḥzan inna allāha maʿanā fa-anzala allāhu sakīnatahu ʿalayhi wa-ayyadahu bi-junūdin lam tarawhā wa-jaʿala kalimata lladhīna kafarū l-suflā wa-kalimatu allāhi hiya l-ʿulyā wallāhu ʿazīzun ḥakīmun

If ye help not (your leader), (it is no matter): for Allah did indeed help him, when the Unbelievers drove him out: he had no more than one companion; they two were in the cave, and he said to his companion, "Have no fear, for Allah is with us": then Allah sent down His peace upon him, and strengthened him with forces which ye saw not, and humbled to the depths the word of the Unbelievers. But the word of Allah is exalted to the heights: for Allah is Exalted in might, Wise.