What is the ruling regarding the sequence of purification when Tayammum is necessitated by a lack of sufficient water for all limbs?

Primary text

If Tayammum is required due to a complete lack of water sufficient for all necessary washing parts, the obligatory action is to use the available water first. This is because Tayammum in this case is a substitute for absence of water, which is only confirmed after the water is exhausted. Therefore, using the water must precede Tayammum.