Mishkat al-Masabih
Ibn ‘Abbas said: God’s Messenger was a servant under command who applied to us* only three things which he did not apply to the people in general. He ordered us to perform ablution fully, not to consume sadaqa, and not to make an ass cover a mare. * He means the members of the Prophet’s family. Tirmidhi and Nasa’i transmitted it.
وَعَنِ ابْنِ عَبَّاسٍ قَالَ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَبْدًا مَأْمُورًا مَا اخْتَصَّنَا دُونَ النَّاسِ بِشَيْءٍ إِلَّا بِثَلَاثٍ: أَمَرَنَا أَنْ نُسْبِغَ الْوُضُوءَ وَأَنْ لَا نَأْكُلَ الصَّدَقَةَ وَأَنْ لَا نَنْزِيَ حمارا على فرس. رَوَاهُ التِّرْمِذِيّ وَالنَّسَائِيّ
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