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
bayhaqi:3620 – ʿAlī b. Muḥammad b. ʿAbdullāh b. Bishrān> Ismāʿīl b. Muḥammad al-Ṣaffār > ʿAbd al-Karīm b. al-Haytham > Abū al-Yamān > Shuʿayb / Ibn Abū Ḥamzah > Nāfiʿ

[Machine] And Ibn Umar used to say: "If you miss the prayer unit (Raka'ah), then you have missed the prostration (Sujood)."  

البيهقي:٣٦٢٠ – أَخْبَرَنَا عَلِيُّ بْنُ مُحَمَّدِ بْنِ عَبْدِ اللهِ بْنِ بِشْرَانَ بِبَغْدَادَ أنبأ إِسْمَاعِيلُ بْنُ مُحَمَّدٍ الصَّفَّارُ ثنا عَبْدُ الْكَرِيمِ بْنُ الْهَيْثَمِ ثنا أَبُو الْيَمَانِ أَخْبَرَنِي شُعَيْبٌ يَعْنِي ابْنَ أَبِي حَمْزَةَ قَالَ قَالَ نَافِعٌ وَكَانَ ابْنُ عُمَرَ إِذَا وَجَدَ الْإِمَامَ قَدْ صَلَّى بَعْضَ الصَّلَاةِ صَلَّى مَعَ الْإِمَامِ مَا أَدْرَكَ إِنْ قَامَ قَامَ وَإِنْ قَعَدَ قَعَدَ حَتَّى يَقْضِيَ الْإِمَامُ صَلَاتَهُ لَا يُخَالِفُهُ فِي شَيْءٍ قَالَ

وَكَانَ ابْنُ عُمَرَ ؓ يَقُولُ إِذَا فَاتَتْكَ الرَّكْعَةُ فَقَدْ فَاتَتْكَ السَّجْدَةُ  

See similar narrations below:

Collected by Mālik, Bayhaqī
malik:1-16 – Mālik > Nāfiʿ

Yahya related to me from Malik from Nafi that Abdullah ibn Umar ibn al-Khattab used to say, "If the ruku has passed you by, so has the sajda."  

مالك:١-١٦ – وَحَدَّثَنِي عَنْ مَالِكٍ عَنْ نَافِعٍ

أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ بْنِ الْخَطَّابِ كَانَ يَقُولُ إِذَا فَاتَتْكَ الرَّكْعَةُ فَقَدْ فَاتَتْكَ السَّجْدَةُ  

bayhaqi:2581 – Abū Aḥmad al-Mihrajānī > Abū Bakr b. Jaʿfar al-Muzakkī > Muḥammad b. Ibrāhīm > Ibn Bukayr > Mālik > Nāfiʿ

[Machine] Abdullah ibn Umar used to say, "If you miss the Rak'ah, then you have missed the prostration."  

البيهقي:٢٥٨١ – وَأَخْبَرَنَا أَبُو أَحْمَدَ الْمِهْرَجَانِيُّ أنبأ أَبُو بَكْرِ بْنُ جَعْفَرٍ الْمُزَكِّي ثنا مُحَمَّدُ بْنُ إِبْرَاهِيمَ ثنا ابْنُ بُكَيْرٍ ثنا مَالِكٌ عَنْ نَافِعٍ

أَنَّ عَبْدَ اللهِ بْنَ عُمَرَ كَانَ يَقُولُ إِذَا فَاتَتْكَ الرَّكْعَةُ فَقَدْ فَاتَتْكَ السَّجْدَةُ