39:1Az-Zumar

The revelation came down to Messenger of Allah (ﷺ) and he recited to is: "A surah which We have sent down and which We have ordained (faradnaha)" Abu Dawud said: The letter ra (r) is the word faradnaha has short vowel a (with out doubling of consonant r), and then he reached the verses after this verse.

"When Allah, the exalted, speaks to send revelation, the inhabitants of heaven hear the clanging of a bell from the heavens like a chain being dragged across a rock, and they swoon. They continue to remain like that until Jibril comes to them. When he comes to them, they recover and say: 'O Jibril, what did your Lord say?' He would say: 'The truth,' and they would say: 'The truth, the truth.'"

"The last Ayah revealed" or, "The last thing revealed was: They ask you about a legal verdict. Say: 'Allah directs (thus) regarding Al-Kalalah (4:176).'"

The commencement of (the Divine Inspirations to) Allah's Messenger (ﷺ) was in the form of true dreams. The Angel came to him and said, "Read! In the Name of your Lord Who has created all exists), has created man from a clot. Read! And your Lord is Most Generous, Who has taught (the writing) by the pen. (96.1-4)

"I only learned :Qaf. By the Glorious Quran.' Behind the Messenger of Allah (ﷺ); he used to recite it in Subh.