“A man was reciting Surat Al-Kahf, and a horse was tied with two ropes beside him. As he was reciting, a cloud overshadowed him, and as it began to come nearer and nearer, the horse began to trample violently. The man came to the Messenger of Allah (sal Allahu alaihi wa sallam) in the morning and mentioned the incident to him. He (sal Allahu alaihi wa sallam) said, “That was tranquility which descended as a result of the recitation of the Qur’an.”

[Sahih Al-Bukhari and Muslim]”