Muwatta Malik, Book 17, Hadith 38 (USC-MSA) ⓘ

Yahya related to me from Malik from Abdullah ibn Umar from Sulayman ibn Yasar from Irak ibn Malik from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "A muslim does not have to pay any zakat on his slave or his horse."

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، عَنْ سُلَيْمَانَ بْنِ يَسَارٍ، عَنْ عِرَاكِ بْنِ مَالِكٍ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ لَيْسَ عَلَى الْمُسْلِمِ فِي عَبْدِهِ وَلاَ فِي فَرَسِهِ صَدَقَةٌ ‏" ‏ ‏.‏