Need help with what receipts are needed for Qualifying Charitable Contribution Subtraction?

you can read this link fron the iRS. ignore the dates. the rules still apply

https://www.irs.gov/newsroom/qualified-charitable-distributions-allow-eligible-ira-owners-up-to-100000-in-tax-free-gifts-to-charity#:~:text=Any%20IRA%20owner%20who%20wishes 

in short

1) Personal letter instructing your financial institution to make a direct transfer to the charity.

2) Amount of the donation, date of the donation, name of the charity, and whether the charity provided any goods or services.