The correct answer is Surah Ikhlas. This Surah is highly revered in Islam and is considered equivalent to one-third of the Holy Quran. This profound virtue is attributed to its concise yet comprehensive declaration of Tawhid (the absolute Oneness of Allah), which is the fundamental principle of Islam. Reciting it three times is akin to reciting the entire Quran in terms of reward.
Surah Fatiha is the opening chapter and known as 'The Mother of the Book'.
Surah Naas is one of the last Surahs, seeking refuge from evil.
Surah Baqarah is the longest Surah, containing many laws and stories.
While all Surahs are significant, Surah Ikhlas holds this unique distinction due to its core theological message.