وَلَا تَهِنُواْ وَلَا تَحۡزَنُواْ وَأَنتُمُ ٱلۡأَعۡلَوۡنَ إِن كُنتُم مُّؤۡمِنِينَ

Wa laa tahinoo wa laa tahzanoo wa antumul a'lawna in kuntum mu'mineen

So lose not heart, nor fall into despair: For ye must gain mastery if ye are true in Faith.

— Aali Imran (آلِ عِمْرَان), 3:139