3:139
وَلَا تَهِنُوا۟ وَلَا تَحْزَنُوا۟ وَأَنتُمُ ٱلْأَعْلَوْنَ إِن كُنتُم مُّؤْمِنِينَ
walā tahinū walā taḥzanū wa-antumu l-aʿlawna in kuntum mu'minīna
So do not weaken and do not grieve, and you will be superior if you are [true] believers.
— Saheeh International
Do not lose heart or despair- if you are true believers you have the upper hand-
— M. A. S. Abdel Haleem
So do not become weak (against your enemy), nor be sad, and you will be superior (in victory) if you are indeed (true) believers.
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali