حَدَّثَنَا عَبْدُ الْوَهَّابِ بْنُ نَجْدَةَ، حَدَّثَنَا ابْنُ عَيَّاشٍ، عَنْ يَحْيَى بْنِ أَبِي عَمْرٍو السَّيْبَانِيِّ، عَنِ ابْنِ أَبِي مَرْيَمَ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏ إِيَّاكُمْ أَنْ تَتَّخِذُوا ظُهُورَ دَوَابِّكُمْ مَنَابِرَ فَإِنَّ اللَّهَ إِنَّمَا سَخَّرَهَا لَكُمْ لِتُبَلِّغَكُمْ إِلَى بَلَدٍ لَمْ تَكُونُوا بَالِغِيهِ إِلاَّ بِشِقِّ الأَنْفُسِ وَجَعَلَ لَكُمُ الأَرْضَ فَعَلَيْهَا فَاقْضُوا حَاجَتَكُمْ ‏"‏ ‏.‏

Abu Hurairah reported the Prophet(PBUH) as saying “Do not treat the backs of your beasts as pulpits, for Allaah has made them subject to you only to convey you to a town which you cannot reach without difficulty and He has appointed the earth (a floor to work) for you, so conduct your business on it. Translation Not Available

Book Ref: Sunan Abi Dawud Book 15 Hadith 2567
Web Ref:  Sunan Abi Dawud Book 14 Hadith 2561