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.
bukhari:472Musaddad > Bishr b. al-Mufaḍḍal > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

Ibn ʿUmar said, "While the Prophet ﷺ was on the pulpit, a man asked him how to offer the night prayers. He replied, 'Pray two rakʿat at a time and then two and then two and so on, and if you are afraid of the dawn (the approach of the time of the Fajr prayer) pray one rakʿa and that will be the witr for all the rakʿat which you have offered." Ibn ʿUmar said, "The last rakʿat of the night prayer should be odd, for the Prophet ﷺ ordered it to be so.  

البخاري:٤٧٢حَدَّثَنَا مُسَدَّدٌ قَالَ حَدَّثَنَا بِشْرُ بْنُ الْمُفَضَّلِ عَنْ عُبَيْدِ اللَّهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

سَأَلَ رَجُلٌ النَّبِيَّ ﷺ وَهْوَ عَلَى الْمِنْبَرِ مَا تَرَى فِي صَلاَةِ اللَّيْلِ قَالَ مَثْنَى مَثْنَى فَإِذَا خَشِيَ الصُّبْحَ صَلَّى وَاحِدَةً فَأَوْتَرَتْ لَهُ مَا صَلَّى وَإِنَّهُ كَانَ يَقُولُ اجْعَلُوا آخِرَ صَلاَتِكُمْ وِتْرًا فَإِنَّ النَّبِيَّ ﷺ أَمَرَ بِهِ  


See similar narrations below:

Collected by Aḥmad
ahmad:5793Muḥammad b. ʿUbayd > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

[Machine] A man asked the Messenger of Allah ﷺ while he was on the pulpit about the night prayer. He replied, "It is to be performed in pairs." And if one of you fears that he will not wake up until morning, he should pray Witr (the odd-numbered prayer that is performed after Isha prayer)."  

أحمد:٥٧٩٣حَدَّثَنَا مُحَمَّدُ بْنُ عُبَيْدٍ حَدَّثَنَا عُبَيْدُ اللهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

سَأَلَ رَجُلٌ رَسُولَ اللهِ ﷺ وَهُوَ عَلَى الْمِنْبَرِ عَنْ صَلَاةِ اللَّيْلِ قَالَ مَثْنَى مَثْنَى فَإِذَا خَشِيَ أَحَدُكُمْ أَنْ يُصْبِحَ صَلَّى وَاحِدَةً فَأَوْتَرَتْ لَهُ مَا صَلَّى  

ahmad:4492Ismāʿīl > Ayyūb > Nāfiʿ > Ibn ʿUmar

[Machine] A man asked, "O Messenger of Allah, how do you order us to pray at night?" He replied, "You should pray two units of prayer at a time, and when you fear the approach of dawn, pray one unit of prayer which will be your Witr (odd-numbered) prayer for what you have already prayed in the night."  

أحمد:٤٤٩٢حَدَّثَنَا إِسْمَاعِيلُ حَدَّثَنَا أَيُّوبُ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ قَالَ

رَجُلٌ يَا رَسُولَ اللهِ كَيْفَ تَأْمُرُنَا أَنْ نُصَلِّيَ مِنَ اللَّيْلِ؟ قَالَ يُصَلِّي أَحَدُكُمْ مَثْنَى مَثْنَى فَإِذَا خَشِيَ الصُّبْحَ صَلَّى وَاحِدَةً فَأَوْتَرَتْ لَهُ مَا قَدْ صَلَّى مِنَ اللَّيْلِ