Ibne-'Abbas Radiyallahu 'anhuma narrates that once Jibrail 'Alaihis Salam was sitting beside Nabi Sallallahu 'alaihi wasallam, when they heard a rattling sound from the sky. He (Jibrail) raised his head and said: This is a door which has been opened in the sky today, which was never opened before except today, and an angel has descended from it. He (Jibrail) said, this angel had never come down on earth except today. The angel offered salutation, and said: Take glad tidings! You have been given two lights, which were not given to any prophet before you. Surah Al-Fatihah and the last (two) verses of Surah Al-Baqarah. You do not recite even a word from them, but you are rewarded for it. (Muslim: 1877)
Note: The last sentence of this Hadith means that if you recite words
praising Allah, you will get the reward for praising Allah; and if it
is a word of supplication, it will granted to you. (Sharh Tibi)