question #3 Sahih al-Bukhari 4839, Book 65, Hadith 360 : What can cause animals to react during the recitation of the Qur’an?

While a man from the companions of the Prophet (ﷺ) was reciting (Qur’an) and his horse was tied in the
house, the horse got startled and started jumping. The man came out, looked around but could not find
anything, yet the horse went on jumping. The next morning he mentioned that to the Prophet.
The Prophet (ﷺ) said, “That was the tranquility (calmness) which descended because of the recitation of
the Qur’an.”