How do I show POF with three people putting up the cash

[Alexander Spira]

Hi Bigger Pockets Community,

I put a bid on a house and the realtor is asking me for POF (proof of funds). Problem is it's three people putting our money together to get this deal. I really do not want to bother my partners for bank letters as I have seen others recommend for POF. How do I go about showing POF when many people are involved in the down payment?

Thanks to all in advance.