«فَاغْسِلُوا وُجُوهَكُمْ»
So wash your faces.
The command explicitly requires washing the face. Washing means causing water to reach the relevant area. The quoted words do not themselves explicitly require intention, a fixed sequence, uninterrupted succession, or pronouncing God’s name at each step.
The Hanafi treatment therefore distinguishes the obligatory wash indicated directly by the verse from additional Sunnah practices or recommended manners supported by other evidence. Validity and perfection should not be collapsed into one question.