Documents needed for ”2 out of 5 years” home sales tax exclusion

[Animesh Das]

Hello, I sold my condo last week. I lived in that condo from 2012-2017. So I satisfy the “2 out of 5 years” rule that allows the home sales profit from capital gains tax exclusion. I was wondering what documents do I need to submit when filing taxes for 2018. My tax person says that no documents need to be submitted to prove that, and me just claiming It is enough. Looking for second opinion. Thanks, Animesh