Quran Verse On Wuzu Says To Do Wuzu Everytime You Get Up For Salah
The word ‘Iza’ indicates ‘when’ you rise to offer Prayer, make ablutoin, it does not mean, ‘whenever’ کلما you rise to offer prayer make ablutoin. So when one is having ablution already, this verse does not make it mandatory to do ablution everytime۔ Secondly, the injunction tells do ablution to attain a higher state of purity, because ablution is missing. but if one is already has ablution, the requirement is fulfilled, so no need to do it again. For example, if it is said, when you rise to go office, dress properly. if one is already properly dressed up, one needs not to do that. This is how we understand langauge.