Khizr is alive since before our time, since the time of Musa according to the majority of the Ummah until our time. It is a matter of consensus amongst historians that no one knows his place of residence and no one knows if he has any companions, except his story with Musa in the Quran and the various narratives that some people think they have seen him as a pious man and after separating from him realized that he was Khizr.