[Machine] If a person enters a barren land and has a small amount of water with them, then they should save themselves with the water and perform ablution with sand.  

إِذَا أَجْنَبَ الرَّجُلُ فِي أَرْضٍ فَلَاةٍ وَمَعَهُ مَاءٌ يَسِيرٌ فَلْيُوثِرُ نَفْسَهُ بِالْمَاءِ وَلْيَتَيَمَّمْ بِالصَّعِيدِ  

[Machine] She washes but does not have water except what she drinks, and you fear, so perform Tayammum.  

تَغْتَسِلَ وَلَيْسَ مَعَكَ مِنَ الْمَاءِ إِلَّا مَا تَشْرَبُ وَأَنْتَ تَخَافُ فَتَيَمَّمْ  

[Machine] If you are traveling and you are in a state of ritual impurity or you are not in a state of ablution, and you fear that if you perform ablution you will die from thirst, then do not perform ablution and restrain yourself. And we narrated it from Al-Hasan Al-Basri, and Ata, and Mujahid, and Tawus, and others.  

إِذَا كُنْتَ مُسَافِرًا وَأَنْتَ جُنُبٌ أَوْ أَنْتَ عَلَى غَيْرِ وُضُوءٍ فَخِفْتَ إِنْ تَوَضَّأْتَ أَنْ تَمُوتَ مَنَ الْعَطَشِ فَلَا تَوَضَّأْهُ وَاحْبِسْ لِنَفْسِكَ وَرُوِّينَاهُ عَنِ الْحَسَنِ الْبَصْرِيِّ وَعَطَاءٍ وَمُجَاهِدٍ وَطَاوُسٍ وَغَيْرِهِمْ