ENOfficial
It was narrated from Zubair bin 'Awwam that : he gave a horse called Ghamr or Ghamrah to someone, then he saw one of its colts or fillies attributed to his horse being sold, but he refrained from (buging) it.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا يَحْيَى بْنُ حَكِيمٍ، حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ، حَدَّثَنَا سُلَيْمَانُ التَّيْمِيُّ، عَنْ أَبِي عُثْمَانَ النَّهْدِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ عَامِرٍ، عَنِ الزُّبَيْرِ بْنِ الْعَوَّامِ، أَنَّهُ حَمَلَ عَلَى فَرَسٍ يُقَالُ لَهُ غَمْرٌ أَوْ غَمْرَةٌ فَرَأَى مُهْرًا أَوْ مُهْرَةً مِنْ أَفْلاَئِهَا يُبَاعُ يُنْسَبُ إِلَى فَرَسِهِ فَنَهَى عَنْهَا .
sunnah.com