https://torontodawah.com/ruling-on-joining-dhuhr-salaah-late-praying-2-rakah-with-the-imam-and-then-4-after-he-finishes-and-whether-to-recite-a-surah-along-with-surah-fatihah-for-the-missed-rakahs/
Ruling On Joining Dhuhr Salaah Late, Praying 2 Rakah With The Imam And Then 4 After He Finishes And Whether To Recite A Surah Along With Surah Fatihah For the Missed Rakahs