There is no problem in walking while performing wuḍūʾ; therefore, if after washing the face and arms one walks a few steps and then wipes his head and feet, his wuḍūʾ is valid. The ninth condition: washing the face and arms and wiping the head and feet must be performed by the person himself; if someone else performs wuḍūʾ on him or helps him in getting the water to his face and arms, or in wiping his head and feet, his wuḍūʾ is invalid.