Sahih al-Bukhari, Book 34, Hadith 156 (In-Book) ⓘ
Narrated Anas bin Malik: Abu Taiba cupped Allah's Messenger and so Allah's Messenger ordered that a Sa of dates be paid to him and ordered his masters (for he was a slave) to reduce his tax.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ حُمَيْدٍ الطَّوِيلِ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه ـ قَالَ حَجَمَ رَسُولَ اللَّهِ صلى الله عليه وسلم أَبُو طَيْبَةَ، فَأَمَرَ لَهُ رَسُولُ اللَّهِ صلى الله عليه وسلم بِصَاعٍ مِنْ تَمْرٍ، وَأَمَرَ أَهْلَهُ أَنْ يُخَفِّفُوا عَنْهُ مِنْ خَرَاجِهِ.
also referenced under: Hadith 2210 (DarusSalam) & Volume 3, Book 34, Hadith 412 (USC-MSA)