Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him), the Noble Prophet (peace and blessings be upon him) said: "The Greatest Name of Allah is in these three surahs of the Qur'an: Surah Al-Baqarah, Surah Aal-e-Imran, and Surah Ta-Ha."

It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) heard a man saying: O Allah! All praise is for You, You alone are the True Deity, You are One, You have no partner, You are the Benefactor (and Bestower of favors), You are the Originator of the heavens and the earth, O Possessor of Majesty and Honor! The Noble Prophet (peace and blessings be upon him), upon hearing this supplication, said: "You have asked Allah by His Greatest Name, by which if He is called upon, He responds, and if He is asked (for anything) by it, He gives."