Riyad as-Salihin — Hadith #38750

On the authority of Ibn Abbas, may God be pleased with them both, he said: While Gabriel, peace be upon him, was sitting with the Prophet, may God’s prayers and peace be upon him, he heard something from above him, so he raised his head and said: “This is a door from heaven that was opened today and has never been opened except today. Then an angel descended from it and said: This is an angel who descended to earth and has never descended except today. So he greeted and said: Receive good news of two lights that you have been given that were not given to a prophet before you: the opening of the Book, and the endings of Surah Cow, you won't read With a letter from it, except that I gave it to him” ((Narrated by Muslim)). The opposite: the sound.