Inherited IRA with a Late RMD

My father passed late in the year and his IRA RMD was not taken. The  transfer of the IRA to me was not completed until January of this year. I had no access to the funds in 2023, but I took the RMD distribution as soon as I had access to the funds in January of this year.  I did not receive a 1099 for this distribution. I assume that it will be sent next year for my 2024 taxes.

 

Do I report the late distribution on my 2023 taxes or report it on my 2024 taxes?

Do I need to file the 5329 form to explain the late distribution in 2023 or send it with the 2024 taxes?

 

Thank you for your help.