9:120
مَا كَانَ لِأَهْلِ الْمَدِينَةِ وَمَنْ حَوْلَهُم مِّنَ الأَعْرَابِ أَن يَتَخَلَّفُواْ عَن رَّسُولِ اللّهِ وَلاَ يَرْغَبُواْ بِأَنفُسِهِمْ عَن نَّفْسِهِ ذَلِكَ بِأَنَّهُمْ لاَ يُصِيبُهُمْ ظَمَأٌ وَلاَ نَصَبٌ وَلاَ مَخْمَصَةٌ فِي سَبِيلِ اللّهِ وَلاَ يَطَؤُونَ مَوْطِئاً يَغِيظُ الْكُفَّارَ وَلاَ يَنَالُونَ مِنْ عَدُوٍّ نَّيْلاً إِلاَّ كُتِبَ لَهُم بِهِ عَمَلٌ صَالِحٌ إِنَّ اللّهَ لاَ يُضِيعُ أَجْرَ الْمُحْسِنِينَ
It was not fitting for the people of Medina and the Bedouin Arabs of the neighbourhood, to refuse to follow Allah's Messenger, nor to prefer their own lives to his: because nothing could they suffer or do, but was reckoned to their credit as a deed of righteousness,- whether they suffered thirst, or fatigue, or hunger, in the cause of Allah, or trod paths to raise the ire of the Unbelievers, or received any injury whatever from an enemy: for Allah suffereth not the reward to be lost of those who do good;-
20:119
وَأَنَّكَ لَا تَظْمَأُ فِيهَا وَلَا تَضْحَى
"Nor to suffer from thirst, nor from the sun's heat."
24:39
وَالَّذِينَ كَفَرُوا أَعْمَالُهُمْ كَسَرَابٍ بِقِيعَةٍ يَحْسَبُهُ الظَّمْآنُ مَاء حَتَّى إِذَا جَاءهُ لَمْ يَجِدْهُ شَيْئاً وَوَجَدَ اللَّهَ عِندَهُ فَوَفَّاهُ حِسَابَهُ وَاللَّهُ سَرِيعُ الْحِسَابِ
But the Unbelievers,- their deeds are like a mirage in sandy deserts, which the man parched with thirst mistakes for water; until when he comes up to it, he finds it to be nothing: But he finds Allah (ever) with him, and Allah will pay him his account: and Allah is swift in taking account.
56:51
ثُمَّ إِنَّكُمْ أَيُّهَا الضَّالُّونَ الْمُكَذِّبُونَ
"Then will ye truly,- O ye that go wrong, and treat (Truth) as Falsehood!-