That the Messenger of Allah ﷺ said: "The blessing of the horse is in its redness."  

قَالَ رَسُولُ اللَّهِ ﷺ يُمْنُ الْخَيْلِ فِي الشُّقْرِ  

That the Prophet ﷺ said: "The best horse is the black one with a spot on the face, and white on the upper lip. Then the one with some white on his lower legs, except for the right. So if it is no black, then the Kumait (red one with black on its ears and its mane) with these markings."  

عَنِ النَّبِيِّ ﷺ قَالَ خَيْرُ الْخَيْلِ الأَدْهَمُ الأَقْرَحُ الأَرْثَمُ ثُمَّ الأَقْرَحُ الْمُحَجَّلُ طَلْقُ الْيَمِينِ فَإِنْ لَمْ يَكُنْ أَدْهَمَ فَكُمَيْتٌ عَلَى هَذِهِ الشِّيَةِ  

] This Hadith is Hasan Gharib Sahih.