Fed him then he peed

I fed my Bp's about 2 hours ago. I just went in to be sure everyone ate their mouse (which they all did) when I noticed one of them had peed - A LOT. Normally I would hurry up and clean it up but he just ate. I only need to lift him for like 1 min to change out the towels. When would you say I should do this. I do not want the urine to scold him. He is laying right in it.

Your fine to move him and clean the cage. Ive moved them while their still constricting, you wont harm anything

As was said, he'll be fine if you're just lifting him out to clean. As long as you aren't "manhandling" him (making him move a lot in awkward ways, etc.). Don't worry too much about him, he's a lot more resilient than you might expect.

Just no games of "hot potato" and he should be fine ;)