Bypassing General Contractor and Paying Sub Directly

[Jake Thompson]

Hi all, I have a project that has been completed and just before I was ready to send out final payment, my general contractor told me that they were filing for bankruptcy and I should send the bill  directly to the subcontractor. 

My concern is whether I will be protected if the gc were to come back and say that I still owed him the full amount or if I just need to get some sort of paperwork from each of them and that will be sufficient.

thanks!