Q : Faithfully, I believe that there is no God but Allah alone. I heard some people saying that there is a man whose color and dress are purely white. There were no signs of travel on him. This man is called AlRajul AlAkhdar i.e. the green man. If such a man gives you something, your money will be blessed. If he enters a store, its earnings will increase. Please guide us. Are these matters believable or just Bid'ahs (Innovation in religion)?
A : This is a false baseless claim. Such a man does not exist. Some people claim that such a man is AlKhadir. Yet, this is not sound, because AlKhadir already died before the mission of the Prophet (peace be upon him) according to the most appropriate view held by scholars. The superstition you have mentioned is inspired by Satan and is baseless. You should be aware of that and should not be tempted by the claims of charlatans.