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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bayhaqi:3762 – Abū Zakariyyā b. Abū Isḥāq al-Muzakkī And ʾAbū Bakr Aḥmad b. al-Ḥasan al-Qāḍī > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > al-Aṣam > Baḥr b. Naṣr > Quriʾ > Ibn Wahb Akhbarak Yūnus b. Yazīd > Ibn Shihāb > al-Aʿraj > Abū Hurayrah

[Machine] I saw Umar ibn al-Khattab prostrating in the prayer of Fajr, then he began reciting another Surah.  

البيهقي:٣٧٦٢ – أَخْبَرَنَا أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ الْمُزَكِّي وَأَبُو بَكْرٍ أَحْمَدُ بْنُ الْحَسَنِ الْقَاضِي قَالَا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ هُوَ الْأَصَمُّ ثنا بَحْرُ بْنُ نَصْرٍ قَالَ قُرِئَ عَلَى ابْنِ وَهْبٍ أَخْبَرَكَ يُونُسُ بْنُ يَزِيدَ عَنِ ابْنِ شِهَابٍ قَالَ أَخْبَرَنِي الْأَعْرَجُ عَنْ أَبِي هُرَيْرَةَ قَالَ

رَأَيْتُ عُمَرَ بْنَ الْخَطَّابِ ؓ سَجَدَ فِي النَّجْمِ فِي صَلَاةِ الْفَجْرِ ثُمَّ اسْتَفْتَحَ بِسُورَةٍ أُخْرَى