Performing Tayammum with Assistance
Issue No.656-If a person cannot perform tayammum himself, he should have someone assist him; the assistant should strike or put (if striking is not possible) the hands of that person on earth and then assist him [physically] to perform tayammum by his own hands and if this is not possible, the assistant should strike his hands on an object on which tayammum is valid and then pass them over that person's forehead and hands.