Due date for Retired partners of firm

Mr.X , who is a working partner in a partnership firm has retired from the partnership firm on 1st August,2022. The firm
is liable for Tax audit u/s.44AB for the said Fin. year 2022-23. (Asst.year 2023-24).
What is the due date for filing of ITR for the retiring partner Mr.X. Is it 31st July ,2023 or is it 31st October,2023.