Sunnah and quran

Al-Ikhlas is not merely the name of this Surah but also the title of its contents, for it deals exclusively with Tauhid. The other Surahs of the Quran generally have been designated after a word occurring in them, but in this Surah the word Ikhlas has occurred nowhere. It has been given this name in view of its meaning and subject matter. Whoever understands it and believes in its teaching, will get rid of shirk (polytheism) completely.