How can we recognize the holy Prophet Muhammad (SAW)?

In my dream I was there with others, on the sky one white horse with wings (buraq) standing. One lady wearing yellow colour shiny dress, cap, bindi on forehead, she is trying to sit on buraq, One knife came and cut her in two pieces, my neighbour told me after this the holy Prophet Muhammad (SAW) will appear, search for him. We all are searching for him. I ask how to recognize the holy Prophet Muhammad (SAW). She said if we see, we will come to know then we went one small street saw one old door and slowly somebody was coming and I saw and told to my neighbour he is NABI SAW he is having beard, shining face, wearing white clothes and cap, I rushed and hold his right hand with my two hands then NABI SAW looked at me with a pleasant smile then my neighbor also did the same. I called my daughter she did not come; instead my neighbor’s daughter came and holds his hand. Then NABI SAW without saying anything he sign with his hand gently, to go. Then he went off by looking at me with a smile. I did sajdah and thanked Allah for showing NABI. Please explain.