A man from among the people of the desert asked the Messenger of Allah ﷺ about prayer at night. He said:"(It is) two by two, and Witr is one rak'ah at the end of the night."  

أَنَّ رَجُلاً مِنْ أَهْلِ الْبَادِيَةِ سَأَلَ رَسُولَ اللَّهِ ﷺ عَنْ صَلاَةِ اللَّيْلِ قَالَ مَثْنَى مَثْنَى وَالْوَتْرُ رَكْعَةٌ مِنْ آخِرِ اللَّيْلِ  

A man from among the people of the desert asked the Messenger of Allah ﷺ about prayer at night. He said:"(It is) two by two, and Witr is one rak'ah at the end of the night." (Using translation from Nasāʾī 1691)  

أَنَّ رَجُلًا مِنْ أَهْلِ الْبَادِيَةِ سَأَلَ رَسُولَ اللهِ ﷺ عَنْ صَلَاةِ اللَّيْلِ فَقَالَ بِإِصْبَعَيْهِ مَثْنَى مَثْنَى وَالْوَتْرُ رَكْعَةٌ مِنْ آخِرِ اللَّيْلِ  

The Prophet ﷺ said: "Witr is one rak'ah at the end of the night." (Using translation from Nasāʾī 1689)   

عَنِ النَّبِيِّ ﷺ قَالَ صَلَاةُ اللَّيْلِ مَثْنَى مَثْنَى وَالْوِتْرُ رَكْعَةٌ مِنْ آخِرِ اللَّيْلِ  

[Machine] The Messenger of Allah ﷺ said, "The night prayer should be performed in pairs of two, and the Witr prayer should be a single unit of prayer at the end of the night."  

عَنْ رَسُولِ اللهِ ﷺ قَالَ «صَلَاةُ اللَّيْلِ مَثْنَى مَثْنَى وَالْوِتْرُ رَكْعَةٌ مِنْ آخِرِ اللَّيْلِ»  

A man who lived in the desert asked the Messenger of Allah ﷺ about the prayer at night. He made a sign with his two fingers-in this way in pairs. The witr consists of one rak'ah towards the end in night. (Using translation from Abū Dāʾūd 1421)   

أَنَّ رَجُلًا سَأَلَ رَسُولَ اللهِ ﷺ عَنْ صَلَاةِ اللَّيْلِ فَقَالَ «مَثْنَى مَثْنَى وَالْوَتْرُ رَكْعَةٌ مِنْ آخِرِ اللَّيْلِ»  

"صَلاَةُ اللَّيلِ مَثْنَىَ مثنى، وَالْوِترُ ركعةٌ مِنْ آخِرِ اللَّيْلِ".