How do I transfer mobile passes from my device to another device before starting to travel?

I have bought four passes for me and my partner and our two kids. We still have not started our trip (first travel day planned 18 June). We will first be traveling together and then split up so that I’ll be traveling on alone and the other three will go on together. I now have the four passes on my device and need to transfer my partner’s and our kids’ passes to my partner’s device. What shall I do?