Say: O Mohammad (Salla Allahu Alaihi Wa Sallam)
O Infidels! I do not serve (worship) that which you serve (worship). And you are not servers of that which I serve. And I am not a server of that which you serve. And you are not servers of that which I serve. For you your religion (or judgment) and for me my religion (or judgment). (Al Quran, Surah Al Kafiroon, Chapter 109: Verses 1-6)
Summarized Commentary:
This a declaration to be made to the infidels.