"The Muslim does not have to pay Sadaqah on his slave or his horse."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لَيْسَ عَلَى الْمُسْلِمِ فِي عَبْدِهِ وَلاَ فِي فَرَسِهِ صَدَقَةٌ  

"The Muslim does not have to pay Sadaqah on his slave or his horse."  

أَنَّ النَّبِيَّ ﷺ قَالَ لَيْسَ عَلَى الْمُسْلِمِ صَدَقَةٌ فِي غُلاَمِهِ وَلاَ فِي فَرَسِهِ