Gifts received from an individual are not reported on a tax return, regardless of the amount received.
If the giver of the gift is not a US citizen, not a US resident, not living or working in the US they do not file a Form 709 reporting the gift given.
If you receive a gift of more than $100,000 from a foreign individual then you have to report the gift received using IRS Form 3520. That is an informational form, not a tax return and you pay no taxes on the gift received.