"The Messenger of Allah ﷺ was a slave (of Allah), who would order as he has ben ordered to. He did not give an order to us instead of the people regarding anything except for three: He ordered us that we make our Wudu' well (Isbagh), that we not eat from charity, and the we not mate a donkey with a horse."  

كَانَ رَسُولُ اللَّهِ ﷺ عَبْدًا مَأْمُورًا مَا اخْتَصَّنَا دُونَ النَّاسِ بِشَيْءٍ إِلاَّ بِثَلاَثٍ أَمَرَنَا أَنْ نُسْبِغَ الْوُضُوءَ وَأَنْ لاَ نَأْكُلَ الصَّدَقَةَ وَأَنْ لاَ نُنْزِيَ حِمَارًا عَلَى فَرَسٍ