Tayammum is a dry ablution performed using clean soil or sand if water is unavailable, and involves wiping one's face and hands. The Quran instructs Muslims to perform tayammum if unable to find water by wiping one's face and hands with clean soil or sand.

1. TAYAMMUM
IS TO CLEAN YOURSELF FROM HADTHUL AKBAR OR
ASGHAR . USING SAND IF U ARE UNABLE TO FIND
WATER

2. The Holy Quraan Says.
“…If you do not find water, Then use clean soil, and wipe
your faces and hands with it.”