A sheikh claims that he is taking instructions directly from Rasulullah (sallallahu alayhi wasallam), not in a dream, but in visions while he is awake

Answer

Don't be bamboozled by the claims of the 'sheikh'. There are many quacks and charlatans masquerading as sheikhs. The criterion is the Shariah, not the dreams or kashf of any Wali. Don't attach any credence to the claim of the 'sheikh' receiving instructions from Rasulullah (sallallahu alayhi wasallam). We take our instructions from the Shariah taught to us by Rasulullah (sallallahu alayhi wasallam). The Shariah is not what someone sees in dreams and visions.