Interesting that you brought this up. This morning I was babysitting my great granddaughter and went to YouTube to find her some videos to watch. In the course of my searches, I accidentally ran across a video about a Muslim man who somehow "saw" Jesus and converted to Christianity. So then I typed into the search bar something like "Muslum man saw Jesus," and a long list of video's came up with stories about Muslim encounters with Jesus and subsequent conversion to Christianity.
So I tried the opposite search and typed in something like "Christian converts to Islam." A list of videos came up, but none of them referred to a person having "seen" Mohammed or anything else hinting at the supernatural.
I haven't drawn any conclusions, but I find the whole idea fascinating!