Appearance of Angel Gabriel
Jabir b. ‘Abdullah al-Ansari who was one of the Companions of the Messenger of Allah (ﷺ) reported The Messenger of Allah (ﷺ) told about the intermission of revelation and narrated While I was walking I heard a voice from the sky, and raising my head I saw the angel (i.e. angel Gabriel) who had come to me in Hira’, sitting on a Throne between heaven and earth I was terror-stricken on that account and came back (to my family) and said:
Wrap me up, wrap me up! So they wrapped me up, and the Blessed and Most Exalted Allah sent down:” You who are shrouded, arise and deliver warning, your Lord magnify, your clothes cleanse, and defilement shun,” and” defilement” means idols; and then the revelation was followed continuously.
Sahih Muslim 161 a
In-book : Book 1, Hadith 313
Jabir said: I am narrating to you what was narrated to us by the Messenger of Allah (ﷺ). He said: I stayed in Hira’ for one month and when my stay was completed, I come down and went into the heart of the valley. Somebody called me aloud. I looked in front of me, behind me, on the right of my side and on my left, but I did not see any body. I was again called and I looked about but saw nothing. I was called again and raised my head, and there on the Throne in the open atmosphere he, i. e. Angel Gabriel (peace be upon him) was sitting. I began to tremble on account of fear. I came to Khadija and said: Wrap me up. They wrapped me up and threw water on me and Allah, the Exalted and Glorious, sent down this: you who are shrouded! arise and deliver warning, your Lord magnify, your clothes cleanse.”
Sahih Muslim 161 d
In-book : Book 1, Hadith 316