TIRMIDHI 472: from Saʿīd b. Yasār —
"I was with Ibn Umar on a journey and I fell behind him. He said: 'Where were you?' I said: 'I prayed Al-Witr.' He said: 'Is there not a good exampled for you in Messenger of Allah? I saw Messenger of Allah performing Al-Witr on his mount.'"

الترمذي ٤٧٢: عن سعيد بن يسار —
أَلَيْسَ لَكَ فِي رَسُولِ اللَّهِ أُسْوَةٌ رَأَيْتُ رَسُولَ اللَّهِ ﷺ يُوتِرُ عَلَى رَاحِلَتِهِ قَالَ وَفِي الْبَابِ عَنِ ابْنِ عَبَّاسٍ


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Tirmidhī > Witr (Night Prayer) > § What Has Been Related About Performing Al-Witr On The Mount
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