Sura Āl-ʿImrān 3:173

ٱلَّذِينَ قَالَ لَهُمُ ٱلنَّاسُ إِنَّ ٱلنَّاسَ قَدْ جَمَعُوا۟ لَكُمْ فَٱخْشَوْهُمْ فَزَادَهُمْ إِيمَٰنًا وَقَالُوا۟ حَسْبُنَا ٱللَّـهُ وَنِعْمَ ٱلْوَكِيلُ

lladhīna qalā lahumu l-nāsu inna l-nāsa qad jamaʿū la-kum fa-ikhshawhum fa-zādahum īmānan wa-qālū ḥasbunā allāhu waniʿma l-wakīlu

Men said to them: "A great army is gathering against you": And frightened them: But it (only) increased their Faith: They said: "For us Allah sufficeth, and He is the best disposer of affairs."