Should I text him and see what happens or not?

Life's full of chances and risks, there's are many fish in the sea, go ahead and text him, he'll probably be glad to hear from you, just be subtle and state something along the lines that you would like to hangout sometime, maybe there's something going on that weekend suggest that your going with some friends to whatever event or place and invite him to come along , its a sure icebreaker, good luck

Text him, worst case nothing will happen, Best case.

Text him because that's what you want to do. Don't let fear stop that. Get it over with and just do it!

You got his number from one of his friends but not from him? Not knowing much about your relationship, I'm wondering if he likes you. Maybe you should play it safe and ask him if he likes you or even ask his friends. If you are sure that he likes you why not text him?