مُوَطَّأُ مَالِكٍ
Muwatta Malik 616
Zakat
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرِ بْنِ عَمْرِو بْنِ حَزْمٍ، أَنَّهُ قَالَ جَاءَ كِتَابٌ مِنْ عُمَرَ بْنِ عَبْدِ الْعَزِيزِ إِلَى أَبِي وَهُوَ بِمِنًى أَنْ لاَ يَأْخُذَ مِنَ الْعَسَلِ وَلاَ مِنَ الْخَيْلِ صَدَقَةً .
Yahya related to me from Malik that Abdullah ibn Abi Bakr ibn Amr ibn Hazim said, "A message came from Umar ibn Abd al-Aziz to my father when he was in Mina telling him not to take zakat from either honey or horses."
Arabic/English book reference: Book 17, Hadith 40