Yea but still thanks. I'm not sure if anyone really understood my question. Everyone is tellin me that when u get to the 3rd and 4th rakat, you can't recite Surah Ikhlas. The imam at my local Masjid said to do 2 sajadas at the end if you do recite Ikhlas by mistake. Any legitimacy to that? Just to be safe, I make sure I stop at the second rakat.
You mean when you are doing those units? Well I would advise you to check Al Albani's book, which if my memory serves me correct, talks about whether you can recite more than Al Fatiha, not only Surah Ikhlas but any other surah, in the rakah after the first two, meaning the 3rd or 4th.