A grey mule was gifted to the Prophet ﷺ. He mounted it, and Uqba began leading it for him. The Messenger of Allah ﷺ said to Uqba, "Recite."Uqba asked, "What shall I recite, Messenger of Allah?"He said, "Recite, 'Say, I seek refuge in the Lord of the daybreak, from the evil of what He has created' [Falaq 113:1–2]."He repeated it to me until I had recited it. He noticed that I was not particularly delighted by it, so he said, "Perhaps you took it lightly. You will never stand in prayer with anything like it."
أخبرني عمرو بن عثمان قال حدثنا بقية قال حدثنا بحير بن سعد عن خالد بن معدان عن جبير بن نفير
أهديت للنبي ﷺ بغلة شهباء فركبها وأخذ عقبة يقودها به فقال رسول الله ﷺ لعقبة اقرأ قال وما أقرأ يا رسول الله قال اقرأ قل أعوذ برب الفلق من شر ما خلق فأعادها علي حتى قرأتها فعرف أني لم أفرح بها جدا قال لعلك تهاونت بها فما قمت يعني بمثلها
[hasan] Ahmad reported it: 4/149, from the hadith of Baqiyyah, through the same chain, and it is also in al-Kubra, no. 7842. The hadith has corroborating narrations.