Sometimes, exaltation is attached to the highest thing, Glory be to Him, the Almighty, in reality, and it is the limit of what is obligatory in that, and it is desirable to apply exaltation to the servant insofar as his doing so is of benefit to him, and this is according to the doctrine of those who believe that what is obligatory is to wipe the upper part of the socks, and it is desirable to wipe the bottom of them .