“The Messenger of Allah ﷺ used to pray two Rak’ah while traveling, and he did not do more than that. And he used to pray Tahajjud at night.” I asked: “Did he pray Witr?” He said: “Yes.”  

كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي فِي السَّفَرِ رَكْعَتَيْنِ لاَ يَزِيدُ عَلَيْهِمَا وَكَانَ يَتَهَجَّدُ مِنَ اللَّيْلِ قُلْتُ وَكَانَ يُوتِرُ؟ قَالَ نَعَمْ  

“The Messenger of Allah ﷺ prescribed two Rak’ah of prayer when traveling; they are complete and are not shortened. And Witr when traveling is Sunnah.”  

عَنِ ابْنِ عَبَّاسٍ وَابْنِ عُمَرَ قَالاَ سَنَّ رَسُولُ اللَّهِ ﷺ صَلاَةَ السَّفَرِ رَكْعَتَيْنِ وَهُمَا تَمَامٌ غَيْرُ قَصْرٍ وَالْوِتْرُ فِي السَّفَرِ سُنَّةٌ