USA Overseas Cash Gift Recieved but returned later, Tax Implications

[behlg1188]

I am a US Taxpayer and received $100K as a "Gift" from my uncle who lives in UK, Few months later (same tax year) I have decided to return the entire $100K back to him; How does these 2 transactions need to be reported and what are the tax implications? who needs to fill which form? Appreciate the Response.