Sahih al-Bukhari, Hadith 2102 ⓘ
Narrated Anas bin Malik: Abu Taiba cupped Allah's Messenger so he ordered that he be paid one Sa of dates and ordered his masters to reduce his tax (as he was a slave and had to pay a tax to them).
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ حُمَيْدٍ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه ـ قَالَ حَجَمَ أَبُو طَيْبَةَ رَسُولَ اللَّهِ صلى الله عليه وسلم فَأَمَرَ لَهُ بِصَاعٍ مِنْ تَمْرٍ، وَأَمَرَ أَهْلَهُ أَنْ يُخَفِّفُوا مِنْ خَرَاجِهِ.
also referenced under: Book 34, Hadith 55 (In-Book) & Volume 3, Book 34, Hadith 315 (USC-MSA)