«فَإِنْ لَمْ تَجِدُوا مَاءً فَتَيَمَّمُوا»
If you do not find water, resort to tayammum.
The question is what the word “water” encompasses. Mixing a pure substance into water may change its color, taste, or smell without necessarily removing the identity of water.
A modest addition of saffron, for example, can color water while it still counts as water in the Hanafi approach. A liquid no longer identified as water requires a different analysis. The linguistic designation therefore matters.