It was narrated that Aishah said: "Al-Harith bin Hisham asked the Messenger of Allah (ﷺ): “How does the Revelation come to you?' He said: “Like the ringing of a bell, and when it departs I remember what he (the Angel) said, and this is the hardest on me. And sometimes he (the Angel) comes to me in the form of a man and gives it to me””"
SahihSahihSahih - Agreed UponBook 11 · Hadith 58