Hazrat Abdullah bin Buraidah (may Allah have mercy on him) narrates from his father that he (the Prophet e) heard a man supplicating: "O Allah, I ask You by the fact that You are Allah, the One, the Self-Sufficient, Who did not beget nor was begotten, and there is none comparable to Him." So he (the Prophet e) said: "You have supplicated to Allah by His Greatest Name; if He is supplicated by it, He grants, and if asked by it, He gives."