Hi zafarrzt,
Thanks for using Apple Support Communities! It looks like you've had an issue with your MacBook Pro shutting down when the battery level was at 96%, and I'd like to do what I can to help out.
If this has only happened the one time, it may not be anything to be concerned over. However, I would still start your Mac up in safe mode. Safe mode runs some system checks, and can resolve issues. Use safe mode to isolate issues with your Mac
Keep in mind, your screen may flicker and run slower than usual while in safe mode. Restarting normally will put you back into normal mode again.
If you still have the issue while in safe mode, and your Mac shuts down again without restarting, you may want to have a technician take a look at it. Find Locations
If your Mac restarts, then take a look at this article: If your Mac restarted because of a problem
Take care!