A man was reciting Surat al-Kahf, with his horse tied beside him by two ropes, when a cloud came over him and began drawing closer and closer, causing his horse to shy away. In the morning, he came to the Prophet ﷺ and mentioned what had happened. The Prophet ﷺ said, "That was tranquility, which descended on account of the Quran."
حدثنا عمرو بن خالد حدثنا زهير حدثنا أبو إسحاق
كان رجل يقرأ سورة الكهف وإلى جانبه حصان مربوط بشطنين فتغشته سحابة فجعلت تدنو وتدنو وجعل فرسه ينفر فلما أصبح أتى النبي ﷺ فذكر ذلك له فقال تلك السكينة تنزلت بالقرآن