وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم رُئِيَ وَهُوَ يَمْسَحُ وَجْهَ فَرَسِهِ بِرِدَائِهِ فَسُئِلَ عَنْ ذَلِكَ فَقَالَ ‏"‏ إِنِّي عُوتِبْتُ اللَّيْلَةَ فِي الْخَيْلِ ‏"‏ ‏.‏

Yahya related to me from Malik from Yahya ibn Said that theMessenger of Allah, may Allah bless him and grant him peace, was seenwiping the face of his horse with his cloak. He was questioned aboutit and said, "I was reproached in the night about horses." i.e. nottaking care of them. Translation Not Available

Book Ref: Muwatta Imam Malik Book 21 Hadith 1007
Web Ref:  Muwatta Imam Malik Book 21 Hadith 47