This is according to the doctrine of those who believe that tayammum is also a substitute for greater purity, so he sees tayammum for the one who is in a state of impurity. As for the doctrine of those who believe that one who is in a state of impurity should not perform tayammum, such as Ibn Masoud and others, he is the one who does not see imitation in faith, but rather it is necessary to know God and what is obligatory for him, and it is permissible and impossible with theoretical evidence. A group of theologians said this .