FOLLOWING ARE OBLIGATORY IN TAYAMMUM
2) Striking both the hands on the ground and then wiping the face with them;
3) Striking both the hands on the ground and wiping both the hands upto the elbows. [Bahishti Zewar]
THE MASNUN METHOD OF TAYAMMUM
The method of performing tayammum is to make up one’s mind (NIYYAH) that he is performing tayammum for purification from defilement. He should then say Bismillah and strike both the hands on a clod of earth, blow the excess dust and wipe the face with the hands so as not to leave any place untouched then rub both the hands again on the clod and after blowing the excess dust; first run the four fingers of the left hand from under the tips of the fingers of the right hand upto the elbow on the under side and then run the palm of the left hand from the elbow of the right hand upto the tips of the diners and along the thumb or the upper side deal with the left hand similarly and finally rub the spaces between the fingers of one hand with those of the other if one has a ring on any finger he must either remove it or move it. To run the fingers of one hand through the fingers of the other is also obligation. The above method is applicable for tayammum either for ablution or Ghusl.