Sūrah No. 112. Revealed in Makkah, 4 verses. This Sūrah is named al-Ikhlās as it purifies the one who reflects on it from all forms of polytheism. It is also known as al-Tawhīd. It encapsulates the Unity of God in a succinct and most comprehensive manner. This Sūrah is only one of two Sūras that do not take its name from anything mentioned within it.
After Sūrat al-Fātiha, this is the most important Sūrah in the acts of worship. One scholar has said about it; The entire Quran is an oyster, and the pearl is his statement ‘Say, He, God is One’.