حَدَّثَنَا يَحْيَى عَنِ ابْنِ عَجْلَانَ حَدَّثَنِي نَافِعٌ عَنِ ابْنِ عُمَرَ أَنَّهُ كَانَ يُصَلِّي عَلَى رَاحِلَتِهِ وَيُوتِرُ عَلَيْهَا وَيَذْكُرُ ذَلِكَ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ
مسند امام احمد بن حنبل · Hadith 4620
Naafi' narrated from Ibn Umar that he used to pray on his mount (naafil prayers), and pray witr on it and he said the prophet (PBUH) had done that.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020