Al-Bukhari recorded that Usayd bin Hudayr said that he was once reciting Surat Al-Baqarah while his horse was tied next to him. The horse started to make some noise. When Usayd stopped reciting, the horse stopped moving about. When he resumed reading, the horse started moving about again. When he stopped reciting, the horse stopped moving, and when he resumed reading, the horse started to move again. Meanwhile, his son Yahya was close to the horse, and he feared that the horse might step on him. When he moved his son back, he looked up to the sky and saw a cloud radiating with light that looked like lamps.
In the morning, he went to the Prophet and told him what had happened and then said, “O Messenger of Allah! My son Yahya was close to the horse and I feared that she might step on him. When I attended to him and raised my head to the sky, I saw a cloud with lights like lamps. So I went, but I couldn’t see it.”
The Prophet said, “Do you know what that was” He said, “No.” The Prophet said,
They were the angels, they came close hearing your voice (reciting Surat Al-Baqarah), and if you had kept reading, the people would have been able to see the angels when the morning came, and the angels would not be hidden from their eyes.