وَلاَ تَهِنُواْ فِي ابْتِغَاء الْقَوْمِ إِن تَكُونُواْ تَأْلَمُونَ فَإِنَّهُمْ يَأْلَمُونَ كَمَا تَأْلَمونَ وَتَرْجُونَ مِنَ اللّهِ مَا لاَ يَرْجُونَ وَكَانَ اللّهُ عَلِيمًا حَكِيمًا
[4:104]
And be not weak hearted in pursuit of the enemy; if you suffer pain, then surely they (too) suffer pain as you suffer pain, and you hope from Allah what they do not hope; and Allah is Knowing, Wise.
And slacken not in following up the enemy: If ye are suffering hardships, they are suffering similar hardships; but ye have Hope from Allah, while they have none. And Allah is full of knowledge and wisdom.
Relent not in pursuit of the enemy. If ye are suffering, lo! they suffer even as ye suffer and ye hope from Allah that for which they cannot hope. Allah is ever Knower, Wise.