Arabic (Original)
وَكَانَ يَكْرَهُ الشِّكَالَ مِنْ الْخَيْلِ قَالَ حَجَّاجٌ يَعْنِي إِحْدَى رِجْلَيْهِ سَوَادٌ أَوْ بَيَاضٌ.
English Translation
And he used to dislike shikal in horses - Hajjaj said: meaning that one of its legs was black or white (differing from the rest).