It was narrated from Abu Hurairah that the Prophet صلی اللہ علیہ وآلہ وسلمused to dislike the Shikal among horses. (Sahih)
Abu ‘Abdur-Rahman (An-Nasa’i) said: The Shikal among horses is when three of its feet have white markings and one of them does not, or three of them are not and one of them has white markings. And Ash-Shikal (hobbled) is not used except in the case of feet, not hands.