Tayammum is the Islamic act of dry Ritual purification using purified sand or dust

in Al-Ma'idah contains the order of wuzu, Ghusal, and Tayammum

Tayammum is valid only for one obligatory Salah

Tayammum is obligatory on 4 (AH)

while 

Wazu is obligatory on 5(AH)

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nd9-2-2023