Salafis say that Surah Faatihah is not part of the Qur'aan.

Answer

Salafis are morons (juhala). Don't contaminate your Imaan listening to their jahl. First inform us of the proof for the Qur'aan Majeed -- that the Qur'aan which you are today reciting is the Qur'aan revealed to Rasulullah (sallallahu alayhi wasallam). On providing this proof, we shall discuss the issue of Surah Faatihah.