Abu Saeed al-Khudri said: A man heard another man reciting Say, He is Allah, One He was repeating it. When the next morning came, he went to the Messenger of Allah صلی اللہ علیہ وسلم and mentioned to him. The man tool it (this surah) as a small one. The Prophet صلی اللہ علیہ وسلم said: By Him in Whose Hand is my life, it is equivalent to a third of the Quran.