وَعَنْ عُقْبَةَ بْنِ عَامِرٍ
قَالَ: قُلْتُ: يَا رَسُولَ اللَّهِ أَقْرَأُ سُورَةَ (هُودٍ) أَوْ سُورَةَ (يُوسُفَ)؟ قَالَ: «لَنْ تَقْرَأَ شَيْئًا أَبْلَغَ عِنْدَ اللَّهِ مِنْ (قُلْ أَعُوذُ بِرَبِّ الْفَلَقِ)
Uqbah ibn Amir said that when he asked God’s messenger whether he should recite sura Hud (Qur’an, 11) or sura Yusuf (Qur’an, 12), he told him he could recite nothing more effective with God than “Say, I seek refuge in the Lord of the dawn.” Ahmad, Nasai and Darimi transmitted it.
Mishkat al-Masabih 2068, Book 9, The Excellent Qualities of the Qur'an, Hadith 54. 1 min read