Hadith
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.
Narrated Anas bin Malik:Abu Taiba cupped Allah's Messenger (ﷺ) 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)
Sahih
Sahih al-Bukhari 2102 ·Book 34, Hadith 55·Also available on sunnah.com·