وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم رَأَى رَجُلاً يَسُوقُ بَدَنَةً فَقَالَ ‏"‏ ارْكَبْهَا ‏"‏ ‏.‏ فَقَالَ يَا رَسُولَ اللَّهِ إِنَّهَا بَدَنَةٌ ‏.‏ فَقَالَ ‏"‏ ارْكَبْهَا وَيْلَكَ ‏"‏ ‏.‏ فِي الثَّانِيَةِ أَوِ الثَّالِثَةِ ‏.‏

Yahya related to me from Malik from Abu'z Zinad from al-Araj fromAbu Hurayra that the Messenger of Allah, may Allah bless him and granthim peace, saw a man driving forward a camel which he was going tosacrifice, and he told him to ride it. The man said, "Messenger ofAllah, it is an animal that I am going to sacrifice," and he replied,"Ride it, woe on you," either the second or the third time. Translation Not Available

Book Ref: Muwatta Imam Malik Book 20 Hadith 843
Web Ref:  Muwatta Imam Malik Book 20 Hadith 140