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
tirmidhi:468 – al-Ḥasan b. ʿAlī al-Khalāal > ʿAbd al-Razzāq > Maʿmar > Yaḥyá b. Abū Kathīr > Abū Naḍrah > Abū Saʿīd al-Khudrī

Messenger of Allah said: "Perform Witr before the morning comes upon you."  

الترمذي:٤٦٨ – حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ الْخَلاَّلُ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ أَبِي نَضْرَةَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ أَوْتِرُوا قَبْلَ أَنْ تُصْبِحُوا  

See similar narrations below:

Collected by Muslim, Aḥmad, Ḥākim, Suyūṭī
muslim:754a – Abū Bakr b. Abū Shaybah > ʿAbd al-Aʿlá b. ʿAbd al-Aʿlá > Maʿmar > Yaḥyá b. Abū Kathīr > Abū Naḍrah > Abū Saʿīd

Observe Witr prayer before it is morning. Abu Sa'id reported that they (the Prophet's Companions) asked the Messenger of Allah ﷺ about Witr (prayer). (In reply to their inquiry) he said: Observe Witr prayer before it is morning.  

مسلم:٧٥٤a – حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا عَبْدُ الأَعْلَى بْنُ عَبْدِ الأَعْلَى عَنْ مَعْمَرٍ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ أَبِي نَضْرَةَ عَنْ أَبِي سَعِيدٍ

أَنَّ النَّبِيَّ ﷺ قَالَ أَوْتِرُوا قَبْلَ أَنْ تُصْبِحُوا  

ahmad:11324 – ʿAbd al-Razzāq > Maʿmar > Yaḥyá b. Abū Kathīr > Abū Naḍrah > Abū Saʿīd al-Khudrī

Messenger of Allah said: "Perform Witr before the morning comes upon you." (Using translation from Tirmidhī 468)  

أحمد:١١٣٢٤ – حَدَّثَنَا عَبْدُ الرَّزَّاقِ حَدَّثَنَا مَعْمَرٌ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ أَبِي نَضْرَةَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ قَالَ

قَالَ رَسُولُ اللهِ ﷺ أَوْتِرُوا قَبْلَ أَنْ تُصْبِحُوا  

hakim:1123 – Aḥmad b. Jaʿfar al-Qaṭīʿī > ʿAbdullāh b. Aḥmad b. Ḥanbal from my father > ʿAbd al-Aʿlá > Maʿmar > Yaḥyá b. Abū Kathīr > Abū Naḍrah > Abū Saʿīd al-Khudrī

Observe Witr prayer before it is morning. Abu Sa'id reported that they (the Prophet's Companions) asked the Messenger of Allah ﷺ about Witr (prayer). (In reply to their inquiry) he said: Observe Witr prayer before it is morning. (Using translation from Muslim 754a)  

الحاكم:١١٢٣ – أَخْبَرَنَا أَحْمَدُ بْنُ جَعْفَرٍ الْقَطِيعِيُّ ثنا عَبْدُ اللَّهِ بْنُ أَحْمَدَ بْنِ حَنْبَلٍ حَدَّثَنِي أَبِي حَدَّثَنَا عَبْدُ الْأَعْلَى ثنا مَعْمَرٌ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ أَبِي نَضْرَةَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ

أَنَّ النَّبِيَّ ﷺ قَالَ «أَوْتِرُوا قَبْلَ أَنْ تُصْبِحُوا»  

هَذَا حَدِيثٌ صَحِيحٌ عَلَى شَرْطِ مُسْلِمٍ وَلَمْ يُخَرِّجَاهُ وَلَهُ شَاهِدٌ صَحِيحٌ على شرط مسلم