Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
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
nasai:965 – ʿAmr b. ʿAlī > Yaḥyá > Qurrah b. Khālid > Muḥammad b. Sīrīn > Abū Hurayrah > Sajad

"Abu Bakr and Umar prostrated during: 'When the heaven is split asunder,' as did the one who was better than them (the Prophet ﷺ). "  

النسائي:٩٦٥ – أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ قَالَ حَدَّثَنَا يَحْيَى قَالَ حَدَّثَنَا قُرَّةُ بْنُ خَالِدٍ عَنْ مُحَمَّدِ بْنِ سِيرِينَ عَنْ أَبِي هُرَيْرَةَ قَالَ

سَجَدَ أَبُو بَكْرٍ وَعُمَرُ ؓ فِي { إِذَا السَّمَاءُ انْشَقَّتْ } وَمَنْ هُوَ خَيْرٌ مِنْهُمَا  

See similar narrations below:

Collected by Nasāʾī, Nasāʾī's Kubrá
nasai:966 – Isḥāq b. Ibrāhīm > al-Muʿtamir > Qurrah > Ibn Sīrīn > Abū Hurayrah > Sajad

"Abu Bakr and Umar, may Allah be pleased with them both, and the one who was better than them prostrated during 'When the heaven is split asunder' and 'Read! In the name of your Lord.'"  

النسائي:٩٦٦ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَنْبَأَنَا الْمُعْتَمِرُ عَنْ قُرَّةَ عَنِ ابْنِ سِيرِينَ عَنْ أَبِي هُرَيْرَةَ قَالَ

سَجَدَ أَبُو بَكْرٍ وَعُمَرُ ؓ وَمَنْ هُوَ خَيْرٌ مِنْهُمَا ﷺ فِي { إِذَا السَّمَاءُ انْشَقَّتْ } وَ { اقْرَأْ بِاسْمِ رَبِّكَ }  

nasai-kubra:1039 – ʿAmr b. ʿAlī > Yaḥyá > Qurrah / Ibn Khālid > Muḥammad b. Sīrīn > Abū Hurayrah

"Abu Bakr and Umar prostrated during: 'When the heaven is split asunder,' as did the one who was better than them (the Prophet ﷺ). " (Using translation from Nasāʾī 965)  

الكبرى للنسائي:١٠٣٩ – أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ قَالَ حَدَّثَنَا يَحْيَى قَالَ حَدَّثَنَا قُرَّةُ وَهُوَ ابْنُ خَالِدٍ عَنْ مُحَمَّدِ بْنِ سِيرِينَ عَنْ أَبِي هُرَيْرَةَ قَالَ

«سَجَدَ أَبُو بَكْرٍ وَعُمَرُ فِي إِذَا السَّمَاءُ انْشَقَّتْ وَمَنْ هُوَ خَيْرٌ مِنْهُمَا ﷺ»  

nasai-kubra:1040 – Isḥāq b. Ibrāhīm > al-Muʿtumir > Qurrah > Ibn Sīrīn > Abū Hurayrah

"Abu Bakr and Umar, may Allah be pleased with them both, and the one who was better than them prostrated during 'When the heaven is split asunder' and 'Read! In the name of your Lord.'" (Using translation from Nasāʾī 966)  

الكبرى للنسائي:١٠٤٠ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَخْبَرَنَا الْمُعْتُمِرُ عَنْ قُرَّةَ عَنِ ابْنِ سِيرِينَ عَنْ أَبِي هُرَيْرَةَ قَالَ

سَجَدَ أَبُو بَكْرٍ وَعُمَرُ وَمَنْ هُوَ خَيْرٌ مِنْهُمَا ﷺ فِي إِذَا السَّمَاءُ انْشَقَّتْ وَاقْرَأْ بِاسْمِ رَبِّكِ