IRS is auditing:wage and income. IRS does not have IRA verification as report was not due same time as tax submitted.

Your post is confusing.   Did you receive a letter from the IRS?   For what tax year?   Did you leave out a 1099R that should have been entered on your tax return?    What are you trying to "verify?"   Is there a letter number or CP number on your letter?

If IRS has not asked for documents, don't do anything.

If they change your return you will get a chance to present your evidence if you don't agree with the changes.