Received 1099-K for rental income for my father

My father and I have a joint banking account.   I set up Zillow to collect his rent payments (account is in my name) into our joint account.  I have received the 1099-K for the income.   This is not my income.  He is going to claim the income on his taxes.  How do I handle the 1099-K so it will not affect my taxes?  How do I document this so it is clear to the IRS that everything is on the up and up and there is no funny business going on?