Quran 3:173 from Surah Aal-i-Imraan on Divine Marvels.
ٱلَّذِينَ قَالَ لَهُمُ ٱلنَّاسُ إِنَّ ٱلنَّاسَ قَدۡ جَمَعُواْ لَكُمۡ فَٱخۡشَوۡهُمۡ فَزَادَهُمۡ إِيمَٰنٗا وَقَالُواْ حَسۡبُنَا ٱللَّهُ وَنِعۡمَ ٱلۡوَكِيلُ
English translation: Those who said to them [the people] Indeed the people (have) certainly gathered against you so fear them But it increased them (in the) faith and they said Sufficient for us (is) Allah and (He is the) best [the] Disposer of affairs
Transliteration: alladhina qala lahumu al-nasu inna al-nasa qad jama'u lakum fa-ikh'shawhum fazadahum imanan waqalu hasbuna al-lahu wani'ma al-wakilu