مُوَطَّأُ مَالِكٍ
Muwatta Malik 405
Shortening the Prayer
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يَأْتِي قُبَاءً رَاكِبًا وَمَاشِيًا .
Yahya related to me from Malik from Nafi from Abdullah ibn Umar that when the Messenger of Allah, (ﷺ), used to go to Quba (to pray), he would walk as well as ride.
Arabic/English book reference: Book 9, Hadith 74