Quran 3:139 from Surah Aal-i-Imraan on Divine Marvels.
وَلَا تَهِنُواْ وَلَا تَحۡزَنُواْ وَأَنتُمُ ٱلۡأَعۡلَوۡنَ إِن كُنتُم مُّؤۡمِنِينَ
English translation: And (do) not weaken and (do) not grieve and you (will be) [the] superior if you are believers
Transliteration: wala tahinu wala tahzanu wa-antumu al-a'lawna in kuntum mu'minina