Nabeel Qureshi grew up a devout Muslim, when he learned that God preserved the accuracy of the Bible, he asked God to tell him what the truth is in a dream or vision, and God gave him vision, still unwilling to believe he asked God for a dream, and God gave him a dream. As he read the Bible, he believed it, but he also began to mourn, because he knew that he would lose his friends and family. (They took the original testimony with the vision part down. I'm sure you can find it on YouTube, or in his book "Seeking Allah, Finding Jesus")