‘Uqba b. ‘Āmir said that when he asked God’s messenger whether he should recite <i>sūra Hūd</i> (Qur’ān, 11) or <i>sūra Yūsuf</i> (Qur’ān, 12), he told him he could recite nothing more effective with God than “Say, I seek refuge in the Lord of the dawn.” Ahmad, Nasā’i and Dārimī transmitted it.

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) رَوَاهُ أَحْمد وَالنَّسَائِيّ والدارمي